Physics

by

One Stone to bring them all and in Dark Energy bind them

Well, well, as the oil baron said, it’s Tuesday again, the 10th of January.  And two times five makes ten, so I guess this day has something to do with prime numbers other than just the year (the last 2 digits, anyway) and my age.

Of course, all numbers have to do with prime numbers, in a sense.  I’ve heard mathematicians say that prime numbers are the “elements” of the numbers (or of the whole numbers, at least, I suppose), comparable in a way to the entries in the periodic table.  But 1 (the number of this month, as it were, and surely the more fundamental building block of all the whole numbers) is not considered a prime, because of it were, then every number’s prime factorization could stretch to as long as you like, since any number times one, no matter how often you multiply it, is still the number with which you started.

Mentioning the elements/the periodic table reminds me of a joke that I sometimes see on shirts or mugs or similar that really irritates me every time I encounter it.  It might have been appropriate way back when someone first came up with it, but now it’s just too incorrect, given what we know, to be funny.  That joke is any version of the line, “Never trust an atom/element…they make up everything.”

It’s a silly little play on words, obviously enough, but the fact is, we know now that the elements/atoms don’t even come close to making up everything, so the joke doesn’t even work as a pseudo-nerdy pun.  Atoms, indeed all so-called baryonic matter (which to us might be thought of as “ordinary” matter*) make up only around 5% of the total mass/energy of the universe, according to the latest best estimates.

Another 25% (all these figures are rounded off a bit) of the universe’s mass/energy is so-called Dark Matter (which is dark only in the sense that the Ringwraiths are dark, being invisible, i.e. not interacting at all with light, nor with the strong force, nor (except neutrinos, if you’re counting them) the weak force, as far as anyone can tell).   They only definitely interact with gravity.  And, of course, according to General Relativity, gravity isn’t technically a force, it’s just the shape of spacetime**.

Speaking of spacetime, the remaining 70% of the mass/energy of the universe is what is called Dark Energy, though really that’s just a name that’s kind of sexy-cool, and it’s only “dark” in that it seems to have nothing to do with the electromagnetic fields (aka light).  This stuff, whatever it is, has characteristics consistent with the “cosmological constant” that Einstein supposedly considered his “greatest blunder”, though as it turns out, he was apparently right, albeit for the wrong reasons.

Yes, when you’re Einstein (you’re not, though) even your mistakes are remarkably fruitful, and eightyish years later they can end up being legitimate descriptions of the universe’s large-scale structure, function, and evolution***.

Of course, whether the Dark Energy is really that uniform energy of spacetime itself that creates a negative pressure throughout its reach and thus repulsive gravity, or if it’s some other process with roughly the same overall effect, we know it’s not what scientists had tried to describe using quantum field contributions, because that was too big by (if I remember correctly) about 123 orders of magnitude.  That’s a factor of 10 to the 123rd power, or a 1 followed by 123 zeroes.  That’s a number so big that if you set it down next to a googol in a form visible to the human eye, you wouldn’t even be able to see the googol.  It would be too vanishingly tiny.  So that’s not the right answer.

Anyway, that’s why I don’t like that joke about atoms or the elements.  It’s just too wrong to be funny.  And now that you know why it’s so wrong, you may be able to stop thinking it’s funny, too.  Am I not generous?  Are you not entertained?  I hope you’re not entertained by that joke, anyway.  People only tell that joke (or so I suspect) to try to make themselves look vaguely scientifically knowledgeable.  But in fact, they do the opposite.

Oh, well, I guess if they’re enjoying themselves…they’re not really doing too much harm…other than spreading misinformation regarding the structure and nature of matter and the cosmos, of course!

Ugh.  Why do I care?  What’s wrong with me?

Well, I know some of the answers to that last question, but knowing doesn’t help much.

I’m currently on the bus, by the way, approaching the train station.  It’s just another day.  Obviously, my recent setback has not resolved itself, and indeed, it may never do so to anyone’s satisfaction.  But I am at least just about done with this blog post in time for the train, which is now 5 minutes away.

I don’t think I’m going to be writing fiction again after this; I still haven’t even figured out how to check the results of the poll I put up (I haven’t tried, to be fair to me).  Oh, well.  Life is either so tragic that it’s comical or so comical that it’s tragic.  But then, at least, it’s over.

Of course, if the universe is infinite in space or in time (or both) at some level, any given life will just start over again, somewhere, somewhen, somehow, and no matter how big the distance between the two iterations, the individual won’t notice the passage of time.  Or it may be that our lives are fixed phenomena in a spacetime block universe as implied at least to some degree by General Relativity, and the instant our lives end, we may just start over again at the beginning, like a DVD (or Blu-ray) played on a loop, never doing anything different, never changing, never learning anything new we hadn’t learned the last time around.  It’s possible, in principle.  We don’t know if it’s true, though quantum mechanics suggests, at least, that it’s not the full picture.

Like the fella said, ain’t that a kick in the head?

einstein_sticks_his_tongue_1951

*As you can see, it’s hard to justify calling something that makes up only around a twentieth of the matter and energy in the universe “ordinary”.  You could be forgiven for calling it “familiar” matter, I would say.  That might be better.

**Maybe M. Night Shyamalan can make that movie.

***It’s a bit like the paper he did with Podolsky and Rosen that was intended to demonstrate that quantum mechanics was incomplete, i.e. that there must be “hidden variables” beneath the seeming randomness, using descriptions of what must happen to two particles produced by the same event but which head off in their usual opposite directions, and whose characteristics, due to conservation of charge, momentum, spin, etc. must be complementary.  Years later, J. S. Bell devised a famous theorem, a test by which one could ascertain whether Einstein was right in that there were hidden variables, or that the states of a particle truly happened randomly but that nevertheless the state of one constrained the state of the other of the pair, however distant.  And just last year, Alain Aspect et al got the Nobel Prize (it took a while) for their experiments confirming, using polarization of photon pairs produced by single quantum events, via Bell’s theorem, that Einstein was wrong, there are no hidden variables in the sense he suspected.  But Einstein’s (and Podolsky’s and Rosen’s) quite legitimate question set into motion the concept of quantum entanglement, a truly important idea in quantum mechanics, just as he had pioneered the early field of quantum mechanics itself in 1905 with his (Nobel Prize winning) paper demonstrating that light comes in what we call photons, the energy of each individual one was described by Planck’s equation of h time the frequency.  One of his other papers from that year used Brownian motion to demonstrate that atoms and molecules‒you know, those things that “make up everything”‒really must exist.  He also did a few somewhat interesting papers on the nature of the speed of light and how it relates to time and length and distance, and something about the equivalence of mass and energy****.  As Sabine Hossenfelder would put it…”Yeah, that guy again.”

****But of course, the paper “On the electrodynamics of moving bodies” didn’t win a Nobel prize, nor did it’s follow-up containing a certain formula relating “rest mass” to energy via the speed of light squared.  So those papers couldn’t have been that important.  Right?

by

For a minute there, I found myself

Wow, I’m really tired.  I had a terrible time falling asleep last night, even though, once again, I was tired and “shagged out” as if after a long squawk, in the words of Michael Palin’s pet shop owner from the dead parrot sketch.  And then, of course, when I finally did get to sleep, I didn’t even come close to sleeping through until my alarm‒though, rather amusingly, I fell back to sleep about half an hour before my alarm was due to go off, so I got to enjoy being awakened by it when I was thoroughly mired in unconsciousness and confusion.  Nevertheless, I did still get up and do three quick sets of (bad) pull-ups before taking my shower, getting dressed, and so on.  And here I am at the train station, waiting for the second train of the day.

I know all this must make for incredibly tedious reading, and for that I am truly sorry.  I’d prefer to write more about potential stories, and which ones, if any, my readers prefer, and about potential “podcasts”*, and all that stuff, with an eye to the future.  But when I revert to insomnia‒after an all-too-brief respite caused by a rather severe illness, the remnants of which are not even gone‒it’s just terribly discouraging.  It’s a special kind of teasing furlough, like getting a weekend off from being in prison, but having to go right back up the road after the weekend, for a sentence the length of which you don’t even know.  And there’s only one reliable way to escape.

It makes it hard to think about any future whatsoever.

Ah, well, it probably really doesn’t matter.  What do I want with a future, anyway?  I don’t have “a life” at all in any appreciable sense.  I can’t even read fiction‒including even comic books and manga for the most part‒anymore, and that’s long been one of the highlights of my life.

I’ve occasionally been able to watch some shows, most recently Wednesday, and I’ve even gotten through five episodes of The Rings of Power, the latter while I was sick.  And, of course, I’ve watched all of the episodes of the modern Doctor Who, most of them more than once, but these are the sorts of things that in the past I had always done with other people, with whom I could share the enjoyment, and even talk about the shows and so on.  It’s just not as much fun to do by myself, even when I watch some of the “reaction” videos of other people watching the shows for the first time, which is almost like watching with a friend, but not quite.

Even the prospects of getting healthier, sleeping better, trying to conquer dysthymia and to integrate into my self-understanding a probable diagnosis of Asperger’s all seem pretty unmotivating.  What’s the point, for instance, of seeking out an official, confirmatory diagnosis of the Syndrome Formerly Known As Asperger’s, at significant personal time and expense?  What, ultimately, would this even do for me?

What’s the point of trying to find a therapist with whom I can work, and that I can work into my schedule‒perhaps through BetterHelp or similar‒to try to mitigate my dysthymia/depression?  It feels better, so to speak, just to feel horrible constantly rather than to have brief respites of feeling a bit better, a bit more “normal”, only to have that feeling slip away again.

It’s even hard to pursue further learning in mathematics and physics, both of which I find deeply interesting.  I have tried to use Brilliant to work on my skills, but though their interactive, stepwise, animated approach is interesting, and I can see why it would appeal to many people, I find it boring after a very short time after I start to use it.  I think I just do better with textbooks, and with problem sets.  I even bought a copy of one of my old college calculus textbooks, the Thomas and Finney one, and started working through it to re-hone and improve my mathematics skills, with an eye toward moving to higher level mathematics after that.  But I haven’t gotten very far.

I also got a copy of Sean Carroll’s Spacetime and Geometry, and the huge tome Gravitation, by Misner, Thorne, Wheeler, et al, which not only is the bible of General Relativity, but is also an excellent demonstration of its own subject.  This is all in an attempt to improve my formal understanding, at the mathematical level, of General Relativity.  Special Relativity is pretty easy, and the mathematics to deal with it formally is/are rather straightforward.  But I don’t have a deep handle on tensors and matrices and higher dimensional geometries‒not at the mathematical level, anyway‒which I’d like to have to be able to approach the subject at a real, quasi-professional level.

I’d also like to be able to do the same thing for quantum mechanics, which is at some levels more straightforward than GR.  I got Susskind’s Theoretical Minimum book on that, but haven’t been able to sustain my attention for it.  That’s my fault, not the writers’.  Anyway, I really want more than the “minimum”; I want to get deeper into the subject, mathematically, because the concepts are all reasonably clear‒although often explained in rather wooly terms by many popularizers‒and I would like to be more formally and mathematically adept at the subject.

And I deeply regret not having done more in pursuit of furthering my pretty good initial exposure to computer science, both at the software and hardware levels.  Related to that, I would like to have done more in circuit theory and more general electrical engineering.

Of course, I did have a lot of my time and energy taken up by biology, chemistry, organic chemistry and the other subjects related to becoming a doctor.  And, of course, “helping” my now-ex-wife study (to the extent she needed help, which was, let’s face it, not very much) when she was in law school was quite fun.  But the time and effort put into both medicine and my marriage have turned out now to be moot and pointless, though they were worth the cost due to the fact that my children are here in the world now.

That fact would be worth almost anything.

Anyway, I don’t have any point** here with all this, and I’ve gone on long enough today.  I’m just tired, and if I can’t find a way to stop being so tired all the time, I really don’t see any good reason to try to keep slogging forward.  All the way up until my next birthday, my age and the two digit number for this year are both prime, and it’s sometimes better to leave while still in one’s prime than afterward, as I mentioned in a previous post.  Meanwhile, though, I’ll see if I can find any other answers.

Oh, P.S.:  Does anyone know off the top of your head how one checks the results (so far) of a poll one has arranged on WordPress?  I’m sure the answer is somewhere in the WordPress “help” functions, but it’s not amenable to a superficial and obvious search, and I’d rather not have to “chat” with one of their “happiness engineers”.  It doesn’t matter much, but if you know,  would you please leave a comment below?  Thanks.

*That’s one of those amazing terms that was a brand new thing based on an entirely new and revolutionary technology, but now that technology itself is already obsolete, but the term lives on.  I think the closest similar thing that readily comes to mind right now is the expression “running out of steam”, which I would guess arose from the era of steam engines, which are quite obsolete, but the expression remains common.

**Now there’s a pithy summary of a life 

by

Great Hypnos, child of Nyx and Erebus and twin brother of Thanatos, why keeps’t thou thyself thus so strange from me?

Well, I have my laptop with me today, and I’m at the train station even earlier than I was yesterday.  This is related to the fact that I woke up even earlier today than yesterday, though I didn’t go to bed or to sleep any earlier.

It is 12-20-2022 on a Tuesday, which is kind of fun—because there are a lot of 2s in today’s date.  I don’t mind the zeroes, but I wish we didn’t have that numeral one in today’s date.  I do remember that the Tuesday on which fell, using the European date writing system, the twenty-second of February of this year was 22-02-2022, which is about as palindromic as such dates can get*, and the ultimate twos-day.  Matt Parker did a video a few years ago about February 2, 2020 for Stand-up Maths, claiming it was the most palindromic, because it worked in European or American dating order.  He had a point; I’ll put a link here if I remember.  But that date did not fall on a Tuesday.

I had to check online to confirm the days on which the dates above fell.  I could probably have worked it out for myself with a bit of figuring.  If I had plenty of energy, it’s the sort of thing I might do—but not right now.  Right now I have almost no energy.  I’m frankly exhausted at nearly every level, though perhaps not according to the literal definition of the word, since it implies something that is fully empty (is that an oxymoron?) in the literal sense.

I feel like I am very close to that point, though.  I’m so tired of doing what I do every day, just to maintain the various functions of life that continue to require maintenance, from eating, to brushing teeth, to working, to buying food, to getting to and from work, to doing laundry, to all those other things that are just repetitive maintenance for a life that I don’t even want to keep doing.

There’s a famous fact of physics that, if there were an airless hole straight through the middle of the Earth**, and if one jumped into the hole, it would take—if memory serves—forty-two minutes to get to the other side of the planet.  I believe Newton figured this out, himself.  Of course, this is highly counterfactual, since there would be air resistance and worse in such a hole, and a large portion of the Earth isn’t even really solid, so you couldn’t maintain a hole, and the Earth’s interior is far too hot to survive passing through even at high speeds.  But still, it seems like it would be nice just to jump into such a hole and fall, going back and forth through the planet without stopping, forever, or at least for the rest of one’s life.

Actually, come to think of it, that’s an experience that’s the same as any form of free-fall.  Anytime one is moving unimpeded along a geodesic in spacetime, one is in the same circumstance.  That was Einstein’s great insight that I believe he described as the happiest thought of his life:  when he realized that a man falling from a high roof would effectively experience no forces whatsoever while falling, and it led him to the principle of equivalence—that acceleration and gravitation are locally indistinguishable—which then led him down the path to General Relativity.  So, just being an astronaut on the ISS would be the same experience, internally, as falling through such a hole in the Earth, though I doubt they’d send me up there just so I could get a break.

Maybe someday there will be free-fall vacations, where a person can book a flight to be put in orbit for a bit, with no engineered gravity, and just allowed to go to sleep.  Maybe one could even climb into a sensory deprivation tank during that time, and the lack of gravitational acceleration would truly allow them not even to experience proprioception related to gravity.  It seems like it would beat just floating in a bath of Epsom salts.

Anyway, I guess what I’m saying is that I’d like to get away from it all, and I do mean from it all.  I can’t relax my mind, I can’t relax my body, but both of them are just achy and tired all the time.  And everything I do is utterly without a point.  I mean, from a certain point of view, everything anyone ever does is without a point, but people can at least have their own, internal purpose, the things that give their lives and deeds meaning to them.  There’s nothing wrong with that.  It’s even rather admirable and heroic and beautiful in its way.

But I don’t have any purpose.  I don’t even have a dugong***.  I’m not going anywhere, I’m not achieving anything, and I don’t get any satisfaction out of anything that I do.  I really am like someone who has kept a Great Ring.

I need just to give up.  I don’t know what I’m achieving by any of this, but I’m pretty sure it’s nothing.  Not that I’m achieving “nothingness”, mind you.  That would, in a sense, be an achievement (ironically).  I’m just achieving nothing, by which I mean not achieving anything.  I guess that’s probably obvious.  Sorry.

I wonder if Michael Jackson’s old doctor makes house calls, if he even is allowed to practice medicine after finishing his remarkably short (shorter than mine) prison term..

I’ll bet he’s not commuting on a train to and from work, living in a single bedroom in the back of an old, cinderblock house, not doing anything for fun, not spending time with his kids or any friends or anything.  And, above all, if he has trouble sleeping, we know he has some tricks to take care of that problem.

Oh, well.

insomnia

*Speaking of palindromes, yesterday we missed the last possible palindromic recording number for the year in doing our verification recordings at work, which was what I had set as a deciding factor regarding my future plans.  So, the universe has sent me no positive message.  Not that I was expecting it to do so.  The universe could hardly care whether I live or die.

**Actually, straight through any two places on the surface of the Earth would give the same basic result, but I’m going to keep things simple.

***Get it?

by

Then there’s hope a great man’s memory may outlive his blog half a year.

Hello and good morning.  It’s Thursday, the day of the week on which I wrote my blog post even when I was writing fiction every other day of the week—well, apart from Sundays and the Saturdays when I  didn’t work.  I have not been writing any fiction recently.

I toyed with the idea the other day, but there doesn’t seem to be much enthusiasm for the notion, which I suppose is mirrored by my own lack of energy, or perhaps has its source in my lack of energy.  Or maybe they come from disparate but merely coincidentally parallel sources.  I don’t know, and though it’s mildly interesting, I don’t have energy or interest enough to try to figure it out.

I did work a bit on a new song yesterday, the one for which I had jotted down some lyrics a while back.  I have lost utterly the original tune, but I worked out a new one of sorts, and it seems okay.  I then worked out some chords for the first stanza, including some relatively sophisticated major sevenths and then major sixths of a minor chord that sounded nice, and which made me at least feel that I really have learned a little bit about guitar chords.  Then I figured out at least the chords I want for the chorus, which, among other things, throw a little dissonance in briefly, which is nice to up the tension.

I don’t know if I’ll get any further with it or not; I may just stop and let it lie.  It’s only perhaps the third time I’ve even picked up the guitar in months.  I was at least able to show myself that I can still play Julia, and Wish You Were Here, and Pigs on the Wing.  I had to fiddle a little to remind myself how to play Blackbird, but after a brief time I was able to bring it back, too.

So, it’s not all atrophied.  And I can still play the opening riff to my own song, Catechism, which I think is my best stand-alone riff.  My other guitar solos are mainly just recapitulations of the melody of the verse or chorus in their respective songs, but the one for Catechism is a separate little melody.

Actually, it occurs to me that I initially did a voice recording of the lyrics to the newish song as I thought of them, and when I did, I probably sang a bit of the tune that had come to my head.  Maybe I should listen to that and see if I like that melody better than the new one I came up with.  That would be a bit funny, if after the effort from yesterday to do a melody and chords I remembered the old one and just threw the new one away.

I suppose it really doesn’t matter much.  Even if I were to work out and record the song, and do accompanying parts and all that stuff, and publish it, I don’t think anyone is likely ever to listen to it much.  Maybe someday in the distant future, some equivalent of an archaeologist who unearths things lost in the web and internet will find the lost traces of my books or music or something, and they’ll be catalogued in some future equivalent of a virtual museum, among trillions of other collections of data that are recorded on line, but which will never seen by anyone for whom they might mean anything at all.

People sometimes say things like “what happens online is forever”, but as I’ve discussed before (I think), even if it’s true that things stored online remain and avoid simple deterioration of data thanks to the redundancy in the system, it doesn’t matter.  In principle, the sound of every tree falling in every wood has left its trace in the vibrational patterns of the world, and according to quantum mechanics, quantum information is never permanently lost, even if things fall into black holes*.

But of course, all that is irrelevant in practice, and comes back to collide with the nature of entropy and the degree to which most large-scale descriptions of a system are indistinguishable.  That picture of you with a funny face at that event years ago, which you tried to have a friend take down, but which had already been shared to a few other people, may in principle always be out there in the archives of Facebook or Twitter or whatever, but it doesn’t matter.  No one will ever notice it or probably even see it among the deluge of petabytes of data whipping around cyberspace every second.  You might as well worry about people being able to reconstruct the sound waves from when you sang Happy Birthday out of tune at your nephew’s fifth birthday party from the information left over in the state of all the atoms and molecules upon which the sound waves impinged.

It’s one of those seemingly paradoxical situations, rather like being in Manhattan.  There are very few places in New York City, and particularly in Manhattan, where one can actually be alone—even most apartments are tiny, and have windows that look out into dozens to hundreds of other people’s windows.  And yet, in a way, you are more or less always alone in Manhattan, or at least you are unobserved, because you are just one of an incomprehensible mass of indistinguishable humans.

Even “celebrities” and political figures, so-called leaders and statespeople, will all fade from memory with astonishing rapidity.  When was the last time you thought about Tip O’Neill?  And yet, for a while, he was prominent in the news more or less every day.  Do you remember where you were when William McKinley was assassinated?  No, because you were nowhere.  None of you existed in any sense when that happened, let alone when, for instance, Julius Caesar was murdered.

And what of the many millions of other people in the world at the time of McKinley or Caesar or Cyrus the Great or Ramses II?  We know nothing whatsoever of them as individuals.  Even the famous names I’m mentioning are really just names for most people.  There’s no real awareness of identity or contributions, especially for the ones who existed before any current people were born.

Last Thursday, I wrote “RIP John Lennon” and put a picture of him up on the board on which we post ongoing sales and the like.  The youngest member of our group, who is in his twenties, asked, “Who is John Lennon?”

He was not joking.

If John Lennon can be unknown to members of a generation less than fifty years after his death, what are the odds that anything any of us does will ever be remembered?

Kansas (the group, not the state) had it right:  “All we are is dust in the wind.  Everything is dust in the wind.”  The only bit they missed was that even the Earth will not last forever, and as for the sky…well, that depends on what you mean by the sky, I suppose.  The blue sky of the Earth, made so by light scattering off Nitrogen and Oxygen molecules, will not outlast the Earth, though there may be other blue skies on other planets.  But planets will not always exist.

As for the black night sky of space, well, that may well last “forever”, for what it’s worth.  But it will not contain anything worth seeing.

TTFN

Tip

*Leonard Susskind famously convinced Stephen Hawking that this was the case—and even won a bet in the process—though other luminaries were of course involved, including Kip Thorne, I believe, one of the masters of General Relativity.

by

Never seem to find the time…

It’s Tuesday now, and I’m writing this post on my smartphone, because I couldn’t be arsed to bring my laptop back from work with me last night.  Perhaps this entry will therefore be more concise than usual, but I wouldn’t lay heavy money on it.  It’s more likely than winning the $1.9 billion Powerball Con Game, but that’s not saying much.  Getting struck by lightning during a shark attack is probably more likely than that.

There’s a full lunar eclipse in progress as I write this, and the umbra has about halfway covered the moon.  I took a snap with my smartphone as I left the house and then more when I got here to the train platform.  I’ll share some of them below.  They are not of very good quality‒and the first one is just streaks of light, because apparently I was too excited to keep my phone still while taking the picture‒but then again, in the days before smartphones, I wouldn’t have been able to take such a picture at all.

The last time I recall watching a lunar eclipse with any degree of attention was back when I was in either junior high or high school, and I had a very cheap telescope on our back deck (This was quite a bit later than the reminiscence I described yesterday).  I have to say, the one happening now is quite a bit more impressive than the one I remember.  The shadowed portion of the moon is almost completely black, and the encroaching edge of the Earth’s shadow is quite, quite different than the usual arc of the moon’s own phases.  It’s fascinating.

I forgot again to work on editing my audio recording of thoughts about time yesterday.  I feel like I want to make some excuse, and there are surely reasons, or at least causes, but it doesn’t really matter what they are.  So, now I’m going to try to rehash those verbal thoughts to give you all either a preview or‒more likely‒a replacement for the posting of those spoken words.

I was triggered to talk about time when watching a science video in which someone pointed out, as people often do, that we are able to travel rather freely in any of the three dimensions of space, but that our direction in time seems entirely one dimensional, and we don’t seem able to choose our direction or speed through it.  But this is a slightly misleading characterization of the situation, I thought, and that thought is not entirely original nor unique to me, but this is my way of thinking about it.

It’s true that, if we were in deep space, especially in one of the gargantuan intergalactic voids (where light from all the surrounding galaxies would be too faint to be visible), there would literally be nothing to differentiate up from down, left from right, forward from backward, or indeed, any of these axes of motion from the others.  But that’s not the situation in which we find ourselves.  We are on the surface of a planet, in the presence of a rather strong gravity “well”, and that changes very much the way we experience the three dimensions of space.

Ignoring the facts of terrain, and thinking back to before we had modern technology, it’s clear that, while we are basically free to move forward and back and left and right‒and indeed, we can swap those axes out arbitrarily‒we are not free to move up and down at will.

Even birds and insects and bats cannot freely move through the up-down dimension, not in the way they can move along the curved plane of the surface of the Earth.  It requires great effort for them to change their height, and they are limited by that effort and by the density of the air through which they swim.  Because we are near a source of strong gravity, there is a clear directionality to one of the dimensions of space, and the only reason we don’t keep falling down is that there’s a planet in the way, but if it weren’t there would be nothing pulling us in one direction.

In a somewhat analogous sense, the only reason there seems to be a directionality to time is that we are near (in time) the presence of a region of very low entropy:  The Big Bang.  Since that time, about 13.8 billion years ago, entropy has been steadily increasing, as is its tendency, for fairly simple, mathematical reasons that make the 2nd law of thermodynamics among the most unassailable of all principles of physics.

All the processes that cause us to experience a directionality to time are driven by the tendency for entropy to increase, and that includes the clumping of matter under gravity, the growth of biological organisms, the accumulation of memory, and the development of technology.  Increasing entropy‒on the largest scales‒is all that allows temporary decreases of entropy locally.  Put poetically, it is only the inevitability of death that allows life to exist at all.

But of course, in the future, as entropy increases, life and local order will be no more possible than they would be in intergalactic space.  Once entropy increases enough‒and the vast majority of the existence of our universe will be in such a state, just as most of space is not near the surface of a planet‒there will be no way even to know which direction of time would have corresponded to what we now think of as past and future, because the laws of physics are locally time-reversible.  Time in that epoch would be no more uni-directional than space is in the vastness of an intergalactic void.

What’s more, it’s clear based on special and general relativity that time is not purely one dimensional.  Time and space bleed into each other depending on relative motion and local spacetime curvature.  That which can curve is not, strictly speaking, entirely one-dimensional in a Euclidean sense.

All this makes me wonder if, perhaps, the Big Bang era is not strictly a “plane” orthogonal to the time dimension, but might in fact be the surface of a sphere…or, well, some manner of hypersphere in space time, the surface of which is all at one “moment” just as the surface of a planet is all‒more or less‒the same distance from its center.

If so, then the Big Bang need not have happened merely in one direction in time.  Others have toyed with ideas like this*, with the thought that there might be a sort of mirror image universe to ours, extending the other direction in time from us, its future analogous to our past.  I’ve even occasionally wondered if the (very slight) relative abundance of matter over antimatter in our direction of time would be mirrored by a relative abundance of antimatter in that universe**.

But on further thought, I’m led to wonder if there need be merely two mirror universes, delineated by the Big Bang, heading in opposite directions.  Perhaps there is a continuum of such directions, just as there is a continuum of “up” directions from the surface of the Earth.  Perhaps our expanding universe has more in common with the expanding size of a sphere around the Earth’s center, which gets larger and larger as one moves away from it, and the Big Bang is not so much a beginning of time or the universe as it is a local area of low entropy in time, allowing the existence of phenomena‒including life‒near its surface that experience a difference locally between past and future only because they exist in an entropy gradient.

Perhaps, far out in the “future” of the universe, there might exist other local entropy minima, in any direction in time from us‒directly ahead or even at right angles in time to us, or any combination thereof.  Of course, “reaching” them would be harder than traveling out into intergalactic space, given that they would probably exist across unguessable gulfs of timeless “time”***.

How would we even measure or pass through time in a region in which entropy was near-maximal and time was without any inherent direction?  Perhaps if it were possible to accelerate continuously to near enough the speed of light that one’s personal time slowed ever more and more, one could survive to arrive at a place where entropy would begin to decrease.  But what would that even be like?  Would one enter such a realm as if a traveler from its future, moving‒to any local residents‒backward through time?

I could go on and on about these ideas, and maybe I’ll explore them more in future (ha) posts, but for now, I’ve taken enough time (ha ha).  This was certainly not a concise blog post, but I hope it was at least intriguing.  I’d be interested to hear your own thoughts on such matters.

In closing, I’ll just ask the following thoroughly fanciful question that just popped into my head:  What would happen to a werewolf during a lunar eclipse?

*For instance, The Janus Point by Julian Barbour, deals with some similar concepts.  I haven’t finished reading the book, but I thought of the ideas I’m discussing before I’d encountered it, and my ideas are somewhat different, though far less expert than his.

**Though they would surely switch the terms, calling our antimatter their matter.

***And reaching the portion of our universe that heads in the opposite direction in time would seem to require exceeding the speed of light, which appears to be impossible‒though perhaps wormholes might lead to such places, if they in fact exist.

by

Happy, happy Halloween (Silver Shamrock)!

It’s Monday morning, and I’m writing this on my phone rather than on my laptop, because I didn’t feel like bringing my laptop back to the house from work on Saturday.  Those of you who have read my very long post from Saturday will probably be happy that I’m using my phone, since my writing tends to be much slower (and therefore shorter) when I use it, rather than my laptop keyboard.  Though I’ve never formally taken any typing courses, and I don’t know what my actual typing speed is, I have been typing since I was quite young (I think I was 11), since my maternal grandmother gave me her electric typewriter and I started writing the first of many fantasy novels, so basically, I can type pretty darn fast.

Of course, today is the 31st of October, and that means it is Halloween, my favorite holiday.  I personally think this should be a “bank holiday” as they say in the UK: a day most people take off work.  But I guess most other people don’t think so.

I’m afraid I haven’t posted the video that I mentioned on Friday and Saturday.  I left it at the office, so to speak.  I also didn’t record myself performing The Haunted Palace yet, but that was just due to a lack of motivation.  I’ll probably do it soon, if I do it at all.  I will attach the audio for my “video” from last week into the bottom of this post, so those who are interested in listening among my readers will get earliest access to it.  I’ll try to remember to post the video on YouTube later today.

I did another impromptu audio recording last night, as some thoughts occurred to me while I was watching a lecture on the nature of time by Sean Carroll, one of my favorite teachers of physics.  They weren’t brand new thoughts; I might even have written something along their lines once before in my other blog, Iterations of Zero.  I haven’t done anything on that blog in quite a while now, since I stopped sequestering my darker brain drippings from this one.  Maybe I should turn that into the place I share my audio stuff before turning it into a video or anything else.  I’m not sure.  It seems a shame to leave it fallow, but most things in life come to naught, anyway, and if it’s appropriate for any blog, then that might well be the one for which it’s most appropriate, given its name.

If anyone out there reads both blogs and has any thoughts about that one, please let me know.

As like as not I’ll never do anything with it, one way or another.  As like as not, even this one will peter out or abruptly terminate sometime soon.  Of course, depending on your time scale, any time could be soon.  And on the Planck time scale, it’s been a nearly immeasurable eternity just since I started writing this post.

There, those are some thoughts about time that didn’t make it into my recording from last night.

Regarding the earlier nocturnal recording, which I’m posting here, today, I need to warn you that the first portion has less than ideal quality, though that might not be obvious until you reach the second portion and compare.  You see, I did the first portion in the middle of the night, as I think I’ve told you before, and I wasn’t really paying much attention to where I was or what was around me.  It was dark, for one thing.  Also, I was sitting up on the floor* very close to the air conditioner, which was active at the time.  I’ve done my best to remove all that racket, and largely succeeded, but the noise reduction does affect the reproduction of my voice.

So, I’ll be editing the vocal thoughts I had last night/this morning, soon, and I’ll post the “video” of my previous thoughts on YouTube soon.  I guess I’ll probably post the audio of last night’s musings here before I turn them into a video and share them on YouTube.  And who knows, maybe I’ll recite The Haunted Palace soon and share a video about that.

If I’m lucky, though, maybe I’ll get hit by lightning, or a truck, or a meteorite, or a V-fib arrest, and that’ll be that.  I’d say that I look forward to oblivion, but of course, that doesn’t quite make sense, since one can’t really imagine oblivion‒if one is doing any imagining, then one is not simulating a state of oblivion.

Still, oblivion has much to recommend it.  There’s no pain, no sorrow, no fear, no regret.  Of course, there are no positive experiences, either, but if the curve of one’s life enjoyment is consistently below the x-axis, then a reversion to zero is a net gain**.  It’s where we’re all headed eventually, anyway.  And Halloween wouldn’t be such a bad day to die, would it?

Knowing my luck, that’s probably not going to happen.

To finish, here’s the audio of my thoughts on the fact that perception is not reality, followed by a few Halloween-appropriate pictures of mine.

Happy Halloween.

Welcome Home Medium in prog (2)

headless horseman croppedpumpkin demon cropped

9734_1044064641361_1817998561_91048_2300407_n

Mark Red

Vagabond pose pic on highway 3 posterized

1427235137816

full-12 (1)

skull drawing

*I sleep on the floor.  Beds take up too much space, and they tend to make my back pain worse.

**This is related to the fact that the lesser of two evils is, by simple mathematical logic, the greater of two goods.

by

Don’t touch that line, it’s hot!

It’s Tuesday morning, which should come as no surprise, since yesterday was Monday.  I am on the earliest train right now—I just got on board less than a minute ago, I’d say, and certainly it only just left the station.  I woke up early, as usual, and just didn’t feel like I could sleep anymore.  On the other hand, although I did wake up early, I can at least report that I didn’t keep waking up over and over again before the final time I woke up, so I seem to have had a few hours’ uninterrupted sleep.  That feels like a major boon*.

Today’s date is a little fun, if you’re using the American ordering of the numbers.  It’s 10-11-2022, which of course is a mini pattern, with a ten and an eleven doubling into a twenty and a twenty-two…all on a “Twosday”!  So, again, a bit of fun with numbers, if you like that sort of thing.  Possibly I’m the only one in the world who finds it amusing.  It wouldn’t be the first time.

I regret to say that I wasn’t able to make a video yesterday, or rather, I wasn’t able to complete one.  I started one, but we had one of our various weird situations at the office, with a potentially returning coworker, who was there quite early, and that interfered with my ability to do a video.  I got less than five minutes of talking done before the interruption came.  I did fiddle around with trying out the video recording on my tablet again a few times during the day, just for experimentation, but that was all.  I ended up knocking the tablet stand over while reaching for something else, and thus knocking over the tablet, but it was not harmed in any visibly detectable*** way.

Hopefully, I’ll get a chance to make a video today.

I think I need to update my “gravitar”, or whatever that term was, that generates the accompanying picture that goes with blog posts, because it shows a picture of me from about ten years ago, in which I was trying to look vaguely amused and whimsical.  It’s a perfectly good picture, of course—“perfectly” not being meant in its literal sense, obviously, since I don’t know what a literally perfectly good picture would even be—but I think it makes readers not quite internalize the blog posts and things that I’m sharing as serious.  I think people read my blog posts in which I try to express my distress and depression, and they see that stupid “gravitar” of me smirking ten years ago, and they think, “Oh, he’s not really all that fucked up right now, he’s just exaggerating for dramatic and/or comedic effect.”

I don’t like the guy in those pictures.  But I guess that probably goes without saying.

It’s been a long time since I updated that picture—I don’t recall even how it’s supposed to be done, frankly, but I’m sure I’ll be able to find it somewhere on the WordPress site, which is where I added it originally.  I need to upload something that’s accurate to how I am now.

I finally have returned to the particular train and the particular seat across from that National Suicide Prevention Hotline poster that I wrote about sometime in the past, and this time, I remembered to take a quick snap of it.  That happened between sentences while writing this blog post.  You probably didn’t even notice it; it was such a swift process that there was nary a hitch in my writing!

I’m not being serious, of course.  Well, I did take a picture, I’m serious about that.  But of course, the time stream of me writing this and the time stream of the final blog post are not the same.  The flow of time is different in the two, and the flow of time in the blog post per anyone reading can be entirely different as well.

That’s kind of curious to think about, at least for me.  I might have mentioned before that if our universe were simulated, down to the Planck scale in space and time, each calculation of interactions could, in principle, take billions of years for some simulating advanced civilizations, but then, after the googols of years it would take to calculate enough of them, we on Earth might still only experience the outcome as the passing of a second, for instance.

I don’t know why an advanced civilization would bother with such things.  But it’s a thought experiment, the domain of spherical inclined planes and frictionless cows, so just go with it.

Anyway, I’ll share the picture of the poster, because one thing that bothers me is that they not only split the infinitive (to be), but they underlined the word with which they split it.  I think it would have been more effective, if anything, to write “It’s OK to be not OK”.  Even the more proper “It’s OK not to be OK” would be preferable to me.

ok not ok scaled down

I truly appreciate and admire the sentiments****, but the split infinitive just makes me more depressed than ever.  The uses of this world and the usages of words seems utterly irrational and pointless to me.  There’s just nobody home.

Might as well shut off the lights.

*Not a reference to Major Boone**.

**I don’t know who “Major Boone” might be, but it would be a good name for a character.

***Nothing I could see, anyway, with or without my reading glasses.  I’m sure there were microscopic scratches and dings, the inevitable hallmarks of entropy, such as will accumulate on even the most durable of substances.  Even diamonds surely lose a carbon atom or two whenever one rubs at them.  The surface atoms, after all, cannot be bonded each to four other carbon atoms, unlike the interior atoms; some must be bonded only to three, and perhaps some even only to two.  And the ones that are bonded to four other atoms in their traditional tetrahedral lattice, are obviously not in an unbreakable arrangement, or there would be no way to cut diamonds.  As far as I know, there is no such thing as an unbreakable arrangement.

****And I don’t want to denigrate the hotline, though my personal experience with them was regrettable because the PBSO came and took me away to a shithole, which I’ve talked about before.  I was only there for less than a day, but it was humiliating and associated with nerve damage to my left wrist, and it did not end up helping me feel better in the long run.  None of this was the hotline’s fault, and I recognize that, but it was quite unpleasant, and is one of the reasons I hesitate to use their services.  I think about calling (or texting) them more days than not, but I don’t think I ever will.  I’m not worth their effort, in any case.  There are many far better uses for their resources than something like me.

by

Welcome to the October Country

Well, it’s October 1st, the beginning of a new month in 2022, a month initially meant to be the eighth month, based on its name.

I’m at the train station and, it being Saturday, the schedule is different than during the week.  There’s also some question of whether the trains are boarding on the usual side or not.  There’s a displayed “announcement” on the light boards that all trains are boarding on one side at this station until further notice, but it could be something left over from yesterday.  Also, the guard is not aware of anything regarding the change in sides.

Nevertheless, today was a day for ordering the monthly pass on the machines, and the ones on my usual side weren’t even working, so I’m on the other side for the moment, anyway.  I’m going to have to try to be vigilant as the time for my train approaches*.  If I miss one train, the next won’t come for another hour.

It’s hard to be vigilant, though.  I feel absolutely exhausted.  My brain feels like it’s barely running on one cylinder, metaphorically speaking**.  I’m just so very tired.

Thankfully, I can embed below my video, which I did end up posting on my YouTube channel yesterday afternoon, so that can provide some of the content and spare me a little writing today.  I might as well, since what I’ve written so far is about some of the most banal things imaginable.

Just a bit of clarification about the video, in case any is necessary:  Obviously I don’t mean to say there is literally no life in the universe, since that would be a contradiction (If there were literally no life, then I could not be speaking about the fact).

I just have always been irked by people who make the wide-eyed claims that it’s so amazing and quasi-mystical that the constants of nature are so perfectly designed to make life, and that must imply some sacred meaning or purpose to it.  That’s about as idiotic as looking at the location of a speck of dust in the corner of a school gym and saying how amazing it is that all the facts of nature conspired to bring that speck of dust right there at that point…it had to have been part of some greater purpose!  It’s drivel.  Only the case with life is even more unimpressive.

My biggest issue with this is that it leads to a kind of quiescence, an assumption that, if the universe was “designed” just so that life can exist, then life, and particularly intelligent life, must be important, and the universe will somehow arrange things to nurture us and protect us from extinction.  If you think that’s the case, then ask the dinosaurs, or better yet, any of the far greater numbers of life forms that went extinct in the Permian-Triassic “Great Dying”.

Oh, wait, you can’t.  They’re all extinct.

No, the universe is almost completely hostile to life, both in terms of its space and in terms of its time.  We are lucky beyond ordinary imagining, though I tried in the description of the video to give some notion of just how lucky in spatial terms, at least, by noting that life exists in roughly only 1.5 x 10-64 of the universe’s volume.

As far as time goes, well if you’re thinking of humanity alone, based on the time that has elapsed since the “Big Bang”, which may or may not be the literal beginning of our universe, the percentage is tiny enough, and others have demonstrated this handily, as in the “cosmic calendar” that Carl Sagan made famous in Cosmos.  But if you want to count all expected possible future time, well then our existence is some fraction of what could be infinity, which is pretty undefined, but might as well be called zero.  The limit certainly approaches zero as we extend the future further and further.

This is not necessarily a call for people just to give up and say “what the hell”, though you have that option, of course, and it is tempting.  I wanted to note that, if you would like for life to continue, and even to have some lasting, cosmic-scale impact, then you can’t take it for granted.  You need to work at it, and work hard, and work long.  The universe is not trying to kill us (contrary to Neil DeGrasse Tyson’s habitual way of putting it); if it were, we would be dead already.  But the universe is huge, and it does not even have the capacity to care what happens to life, except in the minds of that life itself.

All life is in the situation of a castaway on a desert island—there’s no preexisting infrastructure, there’s no one out there looking out for you or protecting you, or providing your light, your heat, your air-conditioning, your food, your clothes, your shelter, what have you.  If you want any of those things, you’re going to have to make and/or find them for yourself, and you’re going to have to keep doing it, for as long as you actually want them and want to survive.

Without much more ado, here’s the video***.  I forgot to ask when I made the video, but please give a “thumbs up” and subscribe and share if you are at all inclined to do so, for any colorable reason.  And feel free to check out the other stuff on my YouTube channel if it looks interesting to you.  If anyone finds this interesting at all, I’m hoping to make more such videos about topics that interest me, assuming the universe doesn’t eliminate me in the meantime (though it seems likely to do so).  Oh, and please let me know what you think, either in the comments below the video or here.

Thanks.  Here it is:

*Just a slightly later addendum:  They have announced overhead that my train is approaching in 10 minutes, and have confirmed that it is not on its usual side.  So I was right to be proactive.

**Of course, it’s a metaphor.  I don’t honestly think that any of you really believe that my brain is an internal combustion engine of some kind, except in the loosest of possible senses.  Apologies.

***I wore a mask and dark glasses in the video mainly because I don’t like how my face looks—it bears evidence of the many things that have happened to me in the last decade or so.  Maybe no one else can see it but me, but it is what it is.  Anyway, the glasses are awesome, I really like them, and the mask combined with them makes for a good look, I think.  Certainly better than my underlying face, anyway.

by

This is an untitled blog post…or IS it?

Okay, well, I’m back on the laptop again, today.  I think I did a decent job of gauging how long my post should be yesterday, despite using my phone to write it.  It did seem to take slightly longer to write the same number of words than it would have with the laptop.  It’s just easier to write faster when you’re using a (nearly) full-scale keyboard and more or less all of your fingers instead of your two thumbs to type.

Still, as I think I’ve noted before, I wrote a goodly part of my science fiction novel, Son of Man using a smartphone that was quite a bit smaller than the one I have now, and I think it turned out pretty well.  At least, the feedback I’ve gotten from the few people I know who have read it and who deigned to comment—one of whom has sadly died—was good.

Not much has changed since yesterday, though.  By which I mean I’m not sure why I’m bothering to keep doing this blog.  I don’t think it’s doing me much good.  As anyone reading regularly can probably tell, my mental health doesn’t seem to be improving at all despite the use of this unidirectional “talk therapy”.

I’m a creature of habit, though, so I’ll continue this until…well, until something stops me, or until I stop doing even this little bit of proactive stuff.  I’m sure that will leave the world no poorer.

The hurricane that’s approaching is not supposed to hit this part of Florida, but to make landfall along the central west coast, but it’s still been sloppy and rainy, and a bit windy, these past few days.  Sunday afternoon was sunny and clear, and I went for a long walk near the end of the day, but since then we’ve had wetness.  At least the modest windiness—which may have at least something peripheral to do with the hurricane—makes it feel less muggy.

It’s almost pleasant, and even has a slight autumnal feel to it.  It reminds me vaguely of the times in the year after school had started and as Halloween approached up north, when the leaves would begin changing—something that, alas, doesn’t really happen in south Florida—and you had to wear a light jacket against the breeze, but it wasn’t yet truly cold.

Of course, no jackets are required here in south Florida, unless you’re going to some high end club or restaurant, or unless you’re wearing one to keep off the rain.  But an umbrella works better against the rain here, in my experience, and it doesn’t leave you so sweaty.  However, if you’re riding a motorcycle, a good rain jacket is useful, and rain pants if you have them.  A good helmet is more than adequate to keep your head dry, and even keeps it warm in what passes for cold weather in south Florida*.

Here I go again, talking about the weather.  It’s rather pathetic, I know, I’m sorry.

I guess I could comment on political or scientific stories if you’d prefer.  I don’t know what happened with the NASA probe thing last night, the experiment to try to shift the orbit of an asteroid.  It’s a trial of concept, basically, to tease out the workings of the process of changing the long-term orbit of an asteroid, in case one ever appears to be headed for Earth.

The laws of motion and Newtonian gravity are more than adequate for us to tell well in advance where an object’s orbit will take it—if we know where the object is and how it’s moving—and what sort of change would make it no longer headed to intersect the Earth, if it were otherwise going to do so.  Given enough lead time, even a tiny nudge can be more than adequate to prevent collisions.

Of course, also given enough lead time, a tiny nudge and the same technology could alter the trajectory of a hitherto harmless asteroid and put it in a trajectory to hit the Earth.

Don’t think I haven’t thought about it.  Regrettably, I don’t have the resources to pull off such a scheme.  However, there are now at least a few people in the world who have their own private space programs, some capable of interplanetary travel.  I wouldn’t put it past Elon Musk to steer a modest asteroid toward Earth to cause just massive enough a catastrophe to support his point pushing for human colonization of other planets, as a sort of object lesson.

Okay, well, I don’t really think he would do that.  He has too much to lose, and it could be quite tricky to steer such an asteroid finely, so that it hit where on Earth you wanted it to hit.  But it might be a good way to unify the human race.  I’ve often thought that we need a real supervillain to bring the world together.  I would volunteer, but I don’t think humanity is worth the effort.  I’m more inclined just to steer a whopping BIG asteroid at Earth and do a planetary reset.

I wouldn’t do this for any ideological reason, and certainly not for any religious reason.  I believe the supernatural cannot exist by (my) definition**.  I just think it would be a good test, of sorts.  If humanity were able to come together to prevent the catastrophe, or to at least survive it and rebuild, they would have demonstrated their continuing worthiness.  And if not, well, then not.

Honestly, given the fact that life is more or less inevitably dominated by fear and pain***, I often veer toward anti-natalism, and even pro-mortalism (look them up).  Of course, given that I have children, and they are the most important two facts about the universe to me, by far, I can hardly be said to be a pure pro-mortalist or anti-natalist.  But then, I never claimed to be.

I don’t think it’s usually good to try to define oneself by any “ism”.  It’s vanishingly unlikely that any one given, finite ideology will have come up with reliable, complete, and final answers. regarding much of anything about life.  If it had, I suspect that fact would have become evident, if not obvious, by now.

Knowledge and deep understanding is gained incrementally, not revealed by some “authority”; the universe is extremely complex, at least on scales like the surface of the Earth at this stage of cosmic evolution.  We can’t expect any simple, easy-to-solve equation to describe even the eddies and whorls that take place when milk first begins mixing into coffee, and that’s more or less the stage of the universe we’re in right now (on a much bigger scale than a cup of coffee, obviously).

Okay, well, I don’t know how I got around to those subjects, but I guess that’s the sort of thing that can happen with stream-of-consciousness writing.  At least it wasn’t just a complete rehash of what I wrote yesterday.  Hopefully tomorrow will likewise not be a rehash.  Tomorrow and tomorrow and tomorrow may creep on in this petty pace to the last syllable of recorded time (which record will eventually decay as time goes its interminable way), but each morrow will differ in its details, at least until all things are washed out by entropy.  It’ll be a while—on the mortal scale, anyway—before that happens cosmically.

Keep your eyes peeled and your ears pricked up, though.  It is coming.

Cloudy coffee

*To be fair, if you’re riding at 70+ miles per hour, even a low in the low fifties feels pretty darn cold, but that sort of weather won’t be back for months now, and goodness knows if I’ll ever ride again.

**By which I mean to say, even if there were such things as gods and demons and angels and spirits and so on, if they really existed, then they would in fact be part of nature, and would have a “lawful” existence of some type, and would therefore be natural.  Only imaginary things can be “supernatural”.

***I’m sure I’ve gone into this before.  It is essential for any successfully reproducing organism to have strong senses of pain and fear, to avoid danger and to avoid and seek to mitigate damage.  These must be more immediate and powerful—and potentially more enduring—than any sense of pleasure or joy.  All pleasure and joy must, by nature, be fleeting, or else an organism will not be driven to work to survive, to reproduce as often as feasible.  An organism that feels little to no fear or pain, and that experiences lasting and powerful joy from any given stimulus or circumstance, will live a blissful but short life, and will be outcompeted by fearful, aggressive, and pain-prone creatures.  It would not tend to leave many offspring, all other things being equal.

by

Tangents of tangents of tangents, oh my!

It’s Wednesday, the middle of the week based on our usual reckoning of things.  Welcome.

Of course, the universe at large doesn’t give any preference to days of the week, or months, or whatever.  Days, per se, are more or less natural units of time, as are years.  Both are related to regular, physical phenomena in the solar system*.  Now, one could argue that since the moon’s orbit around the Earth is roughly twenty-eight days, that seven days in a week is a sort of natural division, since 28 divided by 4 is seven.  That’s not an unreasonable thought, but it is derivative, unlike the measure of a year or a day.

Of course, rather irritatingly, the days don’t evenly divide into the years, nor do the months (orbits of the moon, which itself isn’t quite an even number of days), which means we have to do all sorts of mucking about with the number of days in months to get a reasonable number of them per year, and only one of them has 28 days, but even that changes every 4 years, except every hundred years when it’s 28 again, except every thousand years when it’s 29 again, and so on.  And then, of course, we have to add and subtract “leap seconds” on an irregular basis to adjust things to keep them consistent, lest the seasons creep steadily in one direction or the other relative to the calendar as the years pass, even as the times of day and night also shift.

If the period of the moon’s orbit around the Earth divided evenly into the orbit of the Earth around the sun; and the length of days on Earth** also evenly divided into the orbit of the Earth around the sun; and if those divided evenly, say, into the orbits of the sun around the center of the Milky Way; and then if the second, as we decided it, turned out to be some round number of oscillations of a cesium atom being pumped by a particular wavelength of light—say 9 billion exactly, when measuring a previously decided interval of one sixtieth of one sixtieth of one twenty-fourth of a day…that would all be quite a collection of coincidences!  That would make me start wondering if the whole thing was designed by someone.  As it is, though, it looks very much like it just all kind of happened, with no inherent direction or purpose or goal.  Which makes more sense of most of human history and the natural world than the alternative does.

It would also be quite a coincidence if, for instance, pi turned out to be 3.141618110112114…or some other regular pattern alone those lines.  Especially if some similar pattern of interest showed up when it was measured using other number bases, like base 2, base 16, whatever.  That would be something.  Or imagine if pi were an exact integer.  Of course it’s hard even to imagine what it could possibly be that could make the ratio of a circle’s circumference to its diameter into an integer, how that could actually be achieved, since the number pi is something born of what appears to be fundamental geometry, constrained by internal logical and physical consistency.

Anyway, the universe looks very much like, as I said yesterday, a spontaneously self-assembled system.  For all we know, it’s just a collection of quantum building blocks of some kind that fall together in a bunch of spin-networks, if that was the right term, to form spacetime that acts like General Relativity when there are enough of them***.

And, maybe the other quantum fields are just emergent phenomena that develop as part of the properties of these conglomerated spin-networks, and the net result of their gross uniformity leads them to mutual repulsion, and then—rather like quarks being forcefully separated leading to formation of new quarks if you could do it, which you can’t—when spin-networks are stretched apart, they simply generate new, connecting networks in between, out of the energy from the tension of their repulsion.  Thus, spacetime can expand forever, generating new space-time as it does, and perhaps the other quantum fields, again, are mere epiphenomena that arise when enough spacetime exists.  And everything else, as we can already tell, is a bunch of epiphenomena overlying, or produced by, that.

Here’s a question that just occurred to me:  If spacetime can be continuously created by stretching of the preexisting network, in response to “dark energy” or “inflaton field” or whatever one might call it, popping little new nuggets of spin networks or whatever spacetime is made of into existence, can it, on the other end of things, be made to disappear?  Can quantum spacetime be unmade as readily as it is made?  I don’t think it would have to happen, say, in the “singularity” at the center of a black hole.  I can see that as potentially being a thin and narrow “tube” of spacetime stretching off and continuing to grow but only in one direction, like the function 1/|x| as it approaches zero, with a finite “volume” perhaps, but an infinite “surface area” that can keep growing indefinitely if spacetime really can just keep reforming itself.  Though maybe, if the chunks are of finite size, the tube can never narrow past some certain minimal “circumference”.  I wonder what the implications of that could be.

But can spacetime ever un-form?  Quarks that could be formed from, for instance, stretching the gluon field between two of them could, in principle, “un-form” if they encountered an anti-quark of the proper character.  They can even decay, I think.  But they wouldn’t simply disappear, they would convert into, presumably, some pair of high-energy photons, and maybe something else, too.  But spacetime itself doesn’t always obey the straightforward law of conservation of energy/mass, as GR has already shown.  Conservation of energy is a property of things within spacetime, and is born of the mathematical symmetry of time translation, as per Emmy Noether’s**** Theorem.  It doesn’t necessarily apply to spacetime itself.  So under what circumstances, if any, could it simply spontaneously disappear, and what affects would that have?

Well, that’s something I’m not going to figure out right here right now, I’m afraid.  But, boy, have I gone off on some tangents!  It’s rather like a moon or a planet suddenly released from the gravitational embrace of that which it orbits, to go off into eternity like a rock from a King David-style sling.  Or like the derivative of any continuous function, or the derivatives of derivative of derivatives, “most” of which end up settling out at some constant, if memory serves (but not the exponential function, ex!).

All this is, apparently, just what happens when one cannot stay asleep after three in the morning and so gets up very early and waits for the first train on Wednesday morning.  One thing leads to another, but with no inherent direction or purpose or goal.  Things just happen.

That sounds familiar.

*The rotation of the Earth and its orbit around the sun, in case you didn’t already know.

**Of course, there are different ways to define a day.  There’s a solar day, which—if memory serves—describes the time it takes for the Earth to turn until the same longitude line (so to speak) is facing the sun, which, because of the motion of the Earth in its orbit, is going to be slightly longer than a sidereal day, which—again, if memory serves—describes when the same longitude line returns to its place relative to the distant, “fixed” stars.  Of course, the stars themselves are not truly fixed, but their angular location changes so slowly that that’s an adjustment that doesn’t have to be made often.  I think there are other day measures, but they aren’t popping into my head right now.

***I realize that this is very loosely a description of loop quantum gravity, and that one prediction of one form of that model predicts that light speed even through a vacuum varies ever so slightly by frequency—and that our best measurements of light from distant quasars and the like seem to disconfirm that prediction.  But I don’t think the jury is completely in on that question.  And maybe that specific form of LQG is not quite correct, or the difference is smaller than expected.  I don’t know the subject well enough to opine.

****Look her up.  Einstein called her a mathematical genius.  Hilbert invited her to teach in the University of Göttingen (fighting against the powers that be that didn’t want a woman professor).  She should be a household name.  Her face should be on currency.  She should be bigger than every TikTok “influencer” combined.  That she is not should bring every human shame.