Astrophysics

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Had we but time enough, and space…

It’s the beginning of a new week but the end of an old month:  Monday, June 30, 2025, AD (or CE, if you prefer).  After tonight at midnight, we will be in the second half of this year, for whatever that’s worth.

Of course, one can debate whether Monday is really the beginning of the week or just the beginning of the work week.  Many consider Sunday to be the start of the week, at least here in this region of the “West”.

But, of course, since mainstream Christianity sees Sunday as the sabbath day, a day which is supposed to commemorate the day on which God rested after creating the world, seeing Sunday as the beginning of the week doesn’t make a lot of sense.  In the “original” observance of the sabbath—the Jewish one—Shabbat falls on Saturday (beginning Friday at nightfall), which makes more sense.  Then, Sunday really is the beginning of the week.

Not that any of this actually signifies anything real.  The start of the week or the start of a month or the start of a year are all just as arbitrary as one’s choice of the location of the origin and the x and y axes in setting up a system of coordinates in Euclidean space (or a plane, in this case).  As long as one is consistent in applying them, any calculations involved will turn out the same.  It is, in a way, a kind of symmetry, which would—in physics, anyway, if one were applying Noether’s Theorem to such as absurd situation—imply a conservation law of some variety.

I suppose there is a sort of conservation of days and months, in that one cannot by adding or subtracting days or months on a calendar change the length of a year or of a lunar cycle.  Although, with a big enough rocket or explosion or whatever, one could noticeably alter those things—it would be catastrophic for creatures on Earth, but this is science we’re talking about here, and if life on Earth must suffer for the advancement of science, then so much the worse for life on Earth!

I was kidding with that last bit there.  I am currently alive and on Earth—though at times I rue both facts—so I don’t actually want to treat life on Earth frivolously for my own curiosity’s sake.  Also, and more importantly, the people who matter most to me live on Earth*.

Anyway, over time the orbit of the moon is going to lengthen, as the moon very slowly draws farther and farther away from the Earth (which it is doing).  The length of a day and of a year both also slowly and subtly change over time.  Those time scales are long, though, and probably the sun will go red giant before either rate has changed enough to cause significant trouble, barring some large-scale asteroid collision or something similar.

This does, however, raise a point about the relationship of symmetry and conservation laws, à la Emmy Noether’s theorem.

It is the symmetry of translation—moving something from one place to another doesn’t change the laws of physics—that implies conservation of momentum.  And it is the symmetry of rotation—it doesn’t matter in what direction you’re oriented, the laws of physics are the same—that implies conservation of angular momentum.  And it is the symmetry of time—the laws of physics don’t change from one moment to the next—that implies the conservation of energy.

But here’s the rub:  on the largest of scales, the universe is not time symmetric; the past is significantly different than the present (and the future).  And so, on long time scales, the conservation of energy does not apply.  This is not merely a case in which I’m playing word games, by the way.  In this instance, I am speaking the truth about the nature of energy at the level of the cosmos according physics as it is understood today.

It’s an interesting question whether our local asymmetry in time—i.e., that the direction toward the “Big Bang” looks quite different from the other direction in time—is really just a local phenomenon.  That may seem strange, but perhaps it will be useful to consider an analogy with the various dimensions of space.

In space, in general, there is no directionality to the three dimensions.  One can go up and down, back and forth, and from side to side with equal ease, at least in space in general.  However, if you live on the surface of the Earth**, there is a very real difference between “up-down” and the other two sets of directions.

This apparent directionality to space is caused, of course, by the gravitational effect of the mass of the Earth itself.  It is an entirely local directionality, caused by a local phenomenon.  And similarly, the seeming directionality of time may be merely because we are “near” (in time) to a local, powerfully influential phenomenon:  whatever caused the Big Bang and produced a region in time of extremely low entropy and significant expansion, whether it is cosmic inflation or something else.

It seems pretty clear that, as entropy increases “over time”, the difference between past and future will become less and less noticeable, until eventually, there will be effectively no directionality to time***.  And so, in the “heat death” of the universe, the conservation of energy would steadily apply more and more, even at cosmic scales.

Not that there would be anyone to notice.

Of course, one can ask if there exists more than one time dimension.  I have asked this before, myself, I think on my other blog, Iterations of Zero.  But now there are some serious physicists entertaining the notion.  This sort of thing always makes me feel at least a little bit clever:  when I thought of something before the mainstream physics articles were published (or at least before I encountered them).

Anyway, that’s enough of that for now, this morning.  I hope you all have as good a week as you can.  Well, you will inevitably have as good a week as you can, but I hope it will subjectively be good  for you, too.

*I am not one of those people.

**As I suspect most of you do, at least physically.

***Very much in the way that, as one gets farther and farther away from the surface of some strongly gravitating body, like a planet, the difference between up and down becomes less and less prominent and finally vanishes into undetectability.

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The stochasticity of quantum interactions and the names of days of the week

It’s Wednesday today.  That’s a weird way to spell a day, and a weird way to spell a version of the name of the god Wotan or Odin, after whom the day is named (unless I am quite, quite mistaken).

Our days are peculiarly and seemingly haphazardly named here in the English-speaking West.  We’re not the only ones with inconsistent weekday names, but ours are certainly a strange hodgepodge.  Sunday and Monday are relatively straightforward:  they’re named for the sun and the moon.  Then, weirdly, we suddenly switch to Norse (!) mythology and name the next four days after four of the old Scandinavian deities.  Then, abruptly, we switch to a Roman god, Saturn, for Saturday.

This “names of the days of the week” thing was clearly not planned out.  It just sort of happened.  But that’s the way so many things occur in the real world—indeed, perhaps everything just sort of happens, and at multiple levels—not randomly but nevertheless stochastically and in a way that is functionally unpredictable, at least in its details.

The various quantum fields just sort of interact in ways that, at their lowest stable energy levels, give us quarks and gluons and electrons and photons and W and Z bosons and various neutrinos and a nonzero Higgs field that interacts with some (but not all) of the other fields.  The quarks and gluons just happen to form up stably into protons (and some neutrons, but neutrons are only stable within an atomic nucleus—they decay with a half-life of about ten minutes when existing freely).  And the protons happen to interact, via the electromagnetic field, with the electron field, and they stably pair up, and neutrons come into play “afterwards”, stabilizing larger atomic nuclei (though that’s not all they do).

Then, on large scales, the graviton field (if there indeed is such a thing, which is suspected but not certain) interacts with all the other fields, and where the density of stuff is slightly higher it pulls that stuff in towards itself, and where it is less, that rarefied stuff gets thinned out further as its components are pulled by neighboring stronger areas of gravity.

This process undergoes positive feedback—as stuff gets denser, its gravity gets more prominent, and that in turn tends to make the stuff get denser still.  And if there is any net angular momentum to larger collections of the stuff—and there almost always is some net angular momentum, since there’s only one way to have zero angular momentum, and there is a functionally limitless number of ways for it to be nonzero*—the stuff starts to rotate around a net common axis.

And then, of course, we get galaxies, and in those galaxies, we get stars, in which the interactions of the various quantum fields and gravity lead the protons and neutrons to get together into bigger clumps, some of which are quite stable (and the ones that aren’t stable simply don’t endure but transform into other states until they find ones that are stable).

Then stars run out of fuel, and the various field interactions and gravity produce various kinds of spectacular deaths, most of which involve scattering at least some heavier elements** out into the reaches of the galaxies.  Then we get next generations of stars, which (by the way) clump and develop angular momentum in a smaller but similar way to the galaxies.  And now, with heavier elements, we get planets, some of which are largely solid.

I think you know the broad strokes of the rest of the story.  If not, let me know.

Of course, this is a very general sketch of how stuff just came together to form the universe in which we exist, and there’s no indication that that is anything more than just small things—or esoteric things, really, such as quantum fields and their local perturbations—interacting with each other and making patterns on larger scales, much as water molecules can clump into fantastic patterns in the frost on windows or in snowflakes when they get cool enough.  Simple (well, relatively simple) rules at small scales can come together to produce surprising things at larger scales when they all interact at secondary, tertiary, quaternary and higher levels.

If you want to see how remarkable that tendency can be even in two dimensions, find a website that lets you play “John Conway’s Game of Life” and see how stable and active and interactive shapes can arise from even truly simple rules.

What was my point?  Sorry, I got distracted there for a minute.  Oh, right, I just meant to say that the things that happen and that all seem very real and important and even inevitable and fundamental are largely the products of stochastic processes interacting in ways that ultimately are far from being representable by any kind of linear equation.

It’s entirely possible and plausible that, if the rules of the quantum fields—or the specific types of quantum fields*** involved—were different, and thus interacted with each other differently, they might still accumulate into structures and functions on higher levels, and though they might produce a universe that would be all but incomprehensible to us, and in which we could not survive for an instant, they might nevertheless form structures and processes that could become what would have to be called “alive” and even “aware” and “intelligent”.

But in how many such universes would there be creatures that name the days of whatever passes for their weeks after various astronomical bodies (or whatever they have that is comparable) and random mythological figures from different places and times?

I leave it to the reader to speculate.

*There’s only so fast anything can be spinning, since no part of the spinning thing can exceed the speed of light.  Even black holes have a maximum angular velocity.  Nevertheless, both the angular velocity and the net axis of rotation can be more or less continuously variable.  If we can apply the real numbers—which ironically may not be possible in the real world—there is an uncountably infinite number of possible ways for angular momentum to be nonzero.  That makes zero really unlikely and unstable.

**Astronomers call any element but Hydrogen and Helium a “metal”, which is a very loose use of the term if you ask me.  I think many astronomers would agree, and sometimes I think I detect more than a tiny amount of embarrassment when they tell people that astronomical definition.

***Or the configurations of strings and branes if superstring/M theory turns out to be correct.

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“It’s just the kind of day to leave myself behind”

Well, it’s Tuesday, isn’t it.

Note that I ended that sentence with a period, despite the fact that it seems to be in the form of a question.  That’s because I didn’t really mean it as a question; I had no desire to imply that I wasn’t sure what day of the week it was.  I’m reasonably certain that today is Tuesday.

I’m not absolutely certain, of course, because outside the realms of self-contained systems of mathematical or logical axioms and rigorously defined and applied operations, there can be no true certainty, only higher or lower credence.  Real-world probabilities never reach zero or one.

Mind you, some things are so likely as to be practically certain, and there’s not much point in worrying about whether they are true unless and until some completely new evidence and/or argument makes itself known.  Such is my conviction that today is Tuesday*.

No, I was expressing a sort of resignation about the fact that today is Tuesday.  I would have said it in a sardonic tone had I been speaking aloud.  It’s not that Tuesday is an especially bad day of the week necessarily, notwithstanding the Beatles telling us that Tuesday afternoon is never-ending.  No, it’s just that Tuesday is still practically the beginning of the week, but I am already tired from Monday, and it’s a long way until the weekend, especially if one works on Saturday, which I am going to do, as far as I know.

That last statement has a lower credence than I give to the fact that today is Tuesday, but it’s still well above a 50% chance.

I know, I know, why am I writing this inane nonsense?

It’s just stream of consciousness.  I’m not planning it out, except to the extent that something I’ve written already makes me think of something else I want to write next.  But I have no particular chosen topic today, obviously.  Not that this is atypical.  I almost never have any plan when I start writing blog posts; I just start writing.  Sometimes I’ll just start with an inane phrase, like I did today, and see where that takes me.

Oddly enough, I think when I do have a particular topic in mind—such as in my short-lived series My Heroes Have Always Been Villains—people don’t seem to enjoy my posts as much.  Or, at least, I don’t get as many “likes” or views.  Maybe some people read and “like” them via social media or something, but if so, whatever they’re doing doesn’t reach me as feedback.  I don’t really see comments or responses that aren’t done here on my page.

Of course, as you may already know, the initial purpose for this blog—in this incarnation—was to try to promote my fiction by interacting with potential readers.  Boy was that a dud of an idea!  [No question mark ==> rhetorical, but not really a question].

More people read and have read this blog than ever read any of my books, unfortunately.  It’s rather discouraging, and it’s a large part of why I haven’t been writing fiction for a while, and the last thing I wrote, Extra Body, I just published here.

While I always write the stories I want to write and that I will enjoy (or whatever one might call the process) there really is a rapidly diminishing marginal return as one writes books that almost no one is even aware of, let alone purchases, let alone reads.  And as you know, I have no stomach for self-promotion.  Sometimes I envy narcissists, at least for an instant; then I remember that I tend to find them disgusting (though just a smidge of narcissism can be endearing in the right circumstances).

I also am not very good at interacting with people who might help promote my work, let alone at asking for that help.  I’m pretty good at the creative stuff, or at least I’m tolerably good at it.  I can write, I can draw, I can do music (playing and singing) and other similar stuff.

I’m also pretty good at science and math, and not just in a rote learning sense; I’m pretty creative there, too.  I once invented my own “number” which I call a “gleeb”, the symbol for which was a combined cursive g and b:

The nature of a gleeb is that, if you multiply it by zero, you get one (in other words, a gleeb is the “forbidden” or “undefined” result of 1/0).  That may not seem to make sense, but while I was “up the road” I even worked out some of the algebra and properties of such a number, and it turned out—to my inexpert analysis—to be logically consistent, at least.

I’m not saying it’s useful.  As far as I can tell, it’s not.  But it was a bit of mental fun and exercise, perhaps the intellectual analogue of playing hacky sack.

I’ve also occasionally thought of ideas in physics and in medicine that I thought were interesting, and which later I discovered had actually become areas of research or therapy (the therapy bit is in medicine, not in physics…as far as I know, there are no therapies in physics, despite the fact that there is such a thing as physical therapy**).

But I am not good at putting myself forward or putting myself out there or calling attention to myself.

Okay, well, I guess that’s enough meandering nonsense for the moment, though such nonsense can sometimes be fun.  Hopefully, Tuesday afternoon will not become some bizarre event horizon in which we are stuck forever.

Of course, the person going through the event horizon doesn’t experience the process as eternal; only the distant observers “see****” them slowing and slowing and coming finally, asymptotically, to a complete standstill.  The person who goes through, if they are looking backward, might see the whole history of the universe playing out before them—at least until tidal forces spaghettify them—but they will not experience time stopping.  Think about it:  how could one experience time stopping?  The passage of time is inherent in the process of experience, certainly as we know it.

I hope you have a good day.

*And even if it weren’t, I could just call it Tuesday and say that I have my own way of naming the days of the week, and it would be no more arbitrary than the one in use here in the US and elsewhere.

**This is as opposed to psychotherapy, of course, but it also can lead one to imagine such things as ethereal therapy or conceptual therapy or metaphysical therapy.  What would that last one be***?

***See, I ended that sentence with a question mark; it really was a question, though mainly a rhetorical one.

****I put that in scare quotes because as a person (or whatever) gets closer and closer to an event horizon, any light or other signal leaving them, heading outward, gets red-shifted to longer and longer wavelengths, so it becomes harder and harder actually to see them.  In the end, we cannot truly observe them stuck there forever, because the wavelength of the light leaving them approaches infinity.

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O heavy lightness, serious vanity, misshapen chaos of well-seeming blogs

Hello and good morning.  It’s Thursday, of course‒thus the “traditional” opening salutation‒and here I am again, writing another in a line of hundreds of Thursday blog posts.

Have I said all that I could say, already?  Probably not.  The number of possible 800+ word strings of English writing is surely unfathomably vast.  If I were going to try to give some kind of upper boundary, we would consider that there are a few million words in the English language, and I could just try to solve for a few million to the 800th power.  That’s a huge number (104800). But most of those combinations‒all of them, effectively‒would be nonsense.

By “all of them” I mean that, if one applies the constraints of grammar, or even just of making tolerable sense to a potential reader, the number of strings of 800 coherent words is so much smaller than the number of possible strings of 800 words without care for sensibility that, if one were looking at some shape or field that represented the latter, the former would probably be too small to see, given the constraints on the resolving power of visible light.

It’s a bit like the possibilities implicit in DNA.  The human genome is on the order of a billion or so base pairs* long, if memory serves, and each “site” on the genome has 4 possible “letters”.  So, the potential number of sequences of DNA in that genome is on the order of 4 to the billionth power, which would be 2 to the 2 billionth power, which is about 10 to the 600 millionth power (10600,000,000).

That’s a huge number. Remember, a googol is merely 10100, and it is already a number that far exceeds the number of baryons in the (visible) universe (which is on the order of 1080).  And remember how exponentials work:  every time you add 1 to the exponent you multiply by the base number, in this case 10.  So, 10101 is ten times larger than 10100.

As you can see, the number of possible DNA sequences is beyond astronomical, at least unless we get into, say, the measures of entropy represented by an event horizon, as an indicator of the number of possible quantum states it could have “within”.  But distances and times and numbers of particles in the accessible universe are unnoticeably small compared to the number of possible sequences of DNA**.

However, the vast majority of those base-pair combinations would certainly not code for anything that we would consider human, or indeed any other living creature that’s ever existed on Earth.  Most are the analogue of throwing random words together to make a blog post.  They wouldn’t come close to coding for anything that would be a living creature.

Nevertheless, even ruling out all the nonsense, the number of possible viable human genomes is vast.  It may still be larger than the number of particles in the visible universe, but don’t quote me on that‒I haven’t checked those numbers.  In any case, it’s much larger than the number of humans who have ever lived, and probably larger than the number of humans who will ever live even if the species goes on to become cosmically significant.

What this all comes down to, I guess, is that I haven’t come close to writing all the possible blog posts I could write, even ruling out ones that wouldn’t make any sense and even ruling out ones that differ from others only by a word or two.  I guess this blog itself constitutes a case in point.

But boy, it can be a lot of work trying to write something new every day, and even more work trying to write something interesting.  That’s why I don’t bother with the latter criterion; I just write whatever comes out, which is usually something at least mildly interesting to me, and I figure it’ll reach kindred spirits if they happen upon it‒and if such people even exist.

Speaking of kindred spirits, I hope you all have a lovely day.  At least I hope it will be as good as it can possibly be‒which it will, since once it’s happened, it can’t have been otherwise than it was.

TTFN

*In case you don’t recall, DNA is a long chain molecule of polymerized “nitrogenous bases”, adenine, guanine, thymine, and cytosine.  Because each DNA base can pair up only with its complementary base (A with T, G with C) this allows for high fidelity copying, and thus reproduction.

**Now, if the universe is spatially infinite‒which it looks like it is, but may not be‒then of course the number of particles or quantum states or even planets with life would be infinite, and thus larger than any possible finite number, no matter how big you might choose.  Fun things happen when one deals with infinities.

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Therefore the Moon, the governess of blogs, pale in her anger washes all the air

Hello and good morning.  It’s Thursday, the first of May*, the beginning of yet another stupid month.  They just keep coming, on and on and on, so irritatingly relentless that I find myself wishing for the elimination of the Moon and the destabilization of the Earth’s rotation and orbit just to break the tedium.

I know that would inconvenience a great many other people, though, so I’m not going to try to make it happen.  To be fair, it would be much “easier” to alter the Earth’s rotation than to shift the Moon.  A decent-sized asteroid collision at the right angle could alter both the rate of Earth’s rotation and its angle to the ecliptic.

Of course, such an impact would have devastating consequences for almost everything and everyone on the planet’s surface.  So that’s a win-win scenario!

I’m kidding.  But I often fantasize about wiping out all life as we know it, because none of it is truly benign and it’s all futile and will always be marked broadly by fear and pain and other suffering, because all those things are evolutionarily vital (in the literal sense).  I shouldn’t choose that for other people, though, so I probably would never do such a thing even if I could.

Thinking back to earlier, though, I’ve been pondering the question of just how one would move the Moon in its orbit, and I thought about the reflectors up there in the old Apollo landing sites, still used (last I checked, anyway) to measure the distance to the moon with great precision.

There have long been discussions about how to alter the course of an asteroid that looked to be prone to intercept the Earth.  One way might be to vaporize a portion of the asteroid, causing its “outgassing” to act almost as a rocket propellant, and by Newton’s third law (or, equally valid, by the law of conservation of momentum) the asteroid would shift its trajectory in the direction away from the artificial outgassing.

Well, what if one were to train powerful lasers at one site on the surface of the Moon**?   The fact that the moon is tidally locked with Earth means it’s constantly showing the same face to us, so one could keep focusing on the same portion of the surface.  One could study the albedo and absorption characteristics of the surface of the Moon to try to pick the best wavelength for causing “outgassing” of that surface, and that outgassing would propel the moon away.

It would be a slow process, since the Moon is big, and shifting its orbit significantly would require the delivery of quite a bit of energy, but that’s okay.  One could set up a single laser (or pair of them on opposite sides of the Earth, or more if one desired faster effects) perhaps solar powered and using ordinary telescope-style tracking equipment and software, to train the lasers always on the same point on the surface of the moon.

Gradually, the Moon would shift away from Earth (you’d need to keep adjusting your aim a bit), more quickly than it currently is, and eventually:  lunar liberation!

Of course, even given the abysmal state of science on Earth (and particularly in the US right now), people would eventually notice the Moon moving, and they might even notice the “outgassing”.  But a lot could be done before then.

If one wanted to have a much quicker effect, or rather, a more instantaneous effect, one could develop a large depot of antimatter, which we know how to make in particle accelerators.  Storing antimatter is challenging, of course; it must be kept within electromagnetic fields in high vacuum, since it will annihilate if it encounters its matter counterpart.

Still, with enough time and patience and care (and money), one could gradually accumulate a large stockpile of antiprotons and positrons, perhaps stored adjacent to each other so their mutual electrical attraction makes containment slightly easier.  Then, when one had gathered enough, one could launch it toward the moon in a fairly standard rocket‒it wouldn’t need to be manned, and it certainly wouldn’t need to return to Earth.

Release your tons (I would guess) of antimatter onto the surface of the Moon, perhaps at the center of “mass” of its face that points toward Earth, and watch the fireworks!  There would be complete annihilation of matter-antimatter in a release of energy far more extreme than any mere nuclear weapons could produce.  Heck, if you wanted to bypass the whole Moon process, you could just accumulate your antimatter here on Earth over time, maybe near some damage-multiplier like the ice caps or near a super volcano or something, and release the containment when you’re ready.

In a typical nuclear explosion, less than one percent of the mass involved in the reaction is “converted to energy”***.  In an anti-matter reaction, ALL of it would be converted.  Imagine releasing hundreds of times more energy per kilogram than the most powerful nuclear weapons.

Of course, antimatter is absurdly expensive to make, but economies of scale might help that.  It’s not as though one would be expecting a profit‒unless one went the Bond villain route and used one’s anti-matter bomb to hold the Earth for ransom, which is a thought.

That’s enough of that madness for now.

Speaking of madness, today begins “Mental Health Awareness Month”.  I would say that I’m already aware of mental health in a general sense, I just don’t have much personal familiarity with it.  Mental illness, mental dysfunction, mental dysregulation, these are things with which I am more personally acquainted.  I’m only too aware of them.  Physical health falls into a similar position.

All right, well, before I discuss more ideas about how to alter or eliminate all life as we know it‒I’ve many such ideas, I’m afraid‒I should draw to a close for the day.  In case you can’t tell, I’m not right in the head, am I?  So this is a sort of appropriate month for me, especially coming as it does right after Autism Awareness Month.  Batman only knows what will happen next.

TTFN

*Also known as May Day.  I wonder how that came to be used as a distress call, as in, “Mayday, mayday, we are going down!”

**Alternatively, one could, in principle, use a very large array of adjustable mirrors on Earth, and they could be shifted to reflect sunlight and focus the reflections on one spot on the moon, but to get a strong effect would require a worldwide collaboration or at least acceptance of these mirrors.  It’s hard to see that happening.

***I used “scare” quotes because technically it’s all energy to begin with, it’s just changing form.

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That one might read the blog of fate, and see the revolution of the times

Hello and good morning.  This is my Thursday blog post.  There are many other blogs out there, but this one is mine.

That’s about all I have to say about that, honestly.  I don’t have any other clue.  If anyone has seen a stylized cartoon paw print anywhere, please let me know*.

I don’t know.  What should I write?  I don’t really want to deal with politics right now‒not even political philosophy, which I sometimes find quite interesting.  But watching the world now, it just seems clear that humans are pathetic and, at least when two or more are gathered together in the name of something, their net IQ seems to be the lowest one of all those present divided by the number of people present.

That’s probably harsher than reality‒by that measure, two people each with an IQ of 150 would together have an IQ of 75.  But I don’t have the patience to work out some more likely formula, which would probably involve natural logarithms and the like.  And how would one test such a thing?  The point is, as Tommy Lee Jones’s character in Men In Black pointed out, a person can be smart, but people are stupid.

If humans destroy themselves (whether or not they take the rest of the world with them) it will be a well and truly earned destruction.  It will be a shame, of course, since there is also great potential there.  But then again, in all the hydrogen atoms of the universe there lies the potential for fusion into larger elements and then the creation of beings and civilizations and technology and art and love and even the capacity to produce civilizations that could not only last well into the livable duration of the cosmos but could possibly even alter or steer the fate of the universe itself, doing cosmic engineering.

But of course, almost no hydrogen atoms will ever be part of such a thing.  Perhaps none of them will be.  Certainly, if humans survive and eventually become cosmically relevant, it will be entirely because of luck.  It will not be deserved.

Actually, I’m not even sure what “deserve” really means most of the time.  When people say things like “you deserve love” or “you deserve to be happy” I don’t see the logic**.  How does one come to deserve love or happiness?  Does one come to deserve them just by being born?

That may be a nice idea, but it doesn’t make a lot of sense.  How can one earn some reward by doing nothing?  One can have rights of course, but most real rights are rights not to have others interfere with you.  If you can be said to have a right to something that is in limited supply and to which there is no possible guarantee, then that “right” is pointless.  I might as well say that each person has a right to two unicorns and a wyvern.

All that aside, I suspect that the vast majority of humans are literally no more likely to make any significant contribution to becoming a cosmically relevant civilization than are typical nematodes.  The current (and past) political climate of the world provides strong evidence for that much.

And now that we have thoroughly unqualified public appointees calling for registries of the disabled‒very much like the governments of certain well known and rightly despised 20th century regimes did‒I return to thoughts that “neurodivergent” people should take a Magneto/brotherhood of mutants approach to things and rise up and throw off the control of the so-called neurotypical people.

Neurodivergent people are far less likely‒or so it certainly seems‒to succumb to mob mentality and populism.  I suspect they (we) are far more likely to make a cosmically relevant civilization than the troglodytes are.

As I’ve said before‒in some recent post on this blog, I think‒neurodivergent people are more like Vulcans, and the rest of humanity is like the Romulans.  Whom would you rather have guiding the future of your civilization?

Well, that’s all extremely nerdy and probably silly, but it’s nevertheless probably not wrong.  Maybe we can convince most of the morons to refuse to be vaccinated, and then encourage them all to live close together so they’re not “contaminated” by people who have been vaccinated, and then let the viruses fall where they may.

Whatever.  This is all stupid.  Everything is stupid.  Everyone is uncountably infinitely stupid.  And I am surely among the stupidest of all for even bothering, for even trying to do anything.

TTFN

*This is a reference to the kids’ show Blue’s Clues, which my kids (and I) really enjoyed when they were little.

**Probably because there is none.

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Pi and the sky

It’s Friday and it’s Pi Day (i.e., in the American way of writing dates, it is 3-14, the first 3 digits of pi, the mathematical constant).  There was also a full moon last night, as well as a lunar eclipse.  Incidentally, lunar eclipses only happen during full moons (and solar eclipses only happen during “new” moons).

Okay, that’s probably the only even arguably interesting thing I have to say, so if you want, you can stop reading now.

I’m not really feeling any better today than yesterday.  I’ve had really bad pain, and walking is making things worse rather than better at the moment.  I’m not sure what to do about all of it.  Maybe there’s nothing to do about any of it.  Not all problems are solvable in the short term, with locally available knowledge and resources.

I do know that my general misanthropy, and indeed, my panantipathy, has been strengthened in recent months and weeks and days and even hours.  This is not meant to imply that every bit of incoming information has been confirmatory of my general disgust with humans and with reality in general.  That would be extraordinarily improbable.  If that were to appear to be the case, it would more likely indicate severe biases on my part than that reality is entirely negative.  Still the state of the world is overall pretty rancid, and so many people behave so stupidly.

Now, I would never expect anyone to be free from stupidity‒I’ve said before that intelligence and knowledge are always finite, while ignorance is always infinite.  Batman knows I’m plenty stupid, myself, and indeed, I berate myself more in a single average day (often combined with literal physical abuse) than I’ve probably berated other people in any given week, and possibly months or longer.  Also, I rarely berate other people as viciously or nastily as I do myself.  But that’s because I spend every waking moment with myself, so I have no respite from my own stupidity.

I don’t think I have much to say, otherwise.  The world is shit, overall, or at least that’s my provisional conclusion.  I’m open to countervailing evidence and argument, but I’m not seeking it out or asking for it.  I’ve spent a lot of my life looking for and trying to focus on the good things about reality, trying to find the arguments for optimism and reasons to continue, with far less success than I might have hoped*.  So please don’t try to persuade me unless you have something you think is original to say.

That’s enough for today.  I have nothing new to add at the moment.  I don’t know whether I’ll be working tomorrow‒there aren’t very many people available to come in, so I don’t know what the decision will be‒so I don’t know whether I will even consider writing a blog post.  Even if I do work, I don’t know if I will write a post.  I probably shouldn’t have bothered writing this one.  It’s not very good, and it’s certainly not uplifting or inspiring or edifying in any reasonable sense.

Oh, well, that’s pretty much a good description of reality, and it comes full circle to my point.  Whatever the case, whether it’s meaningless or not, I hope you have a good day and a good weekend.

*One might say that the search for reasons to be optimistic is itself a sign of optimism, and it’s not an entirely meritless point, but it’s not enough.  The desire to desire to live is not the same as the actual desire to live.  The wish to see if there is any worthwhile purpose to anything is not the same as having a worthwhile purpose.

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Maybe it’s signal. Maybe it’s noise. Maybe it’s Maybelline?

Well, it’s Tuesday, and I don’t know that I have anything of use or substance to say, or anything to say that isn’t mostly just noise.  Perhaps I’m just some peculiar source of radio static in the background of the universe.  Or perhaps…perhaps I’m just pretending that what I do is unplanned, when in fact everything is calculated and subversive.

Ha!  I wish.  My brain doesn’t work like that, and I’m not sure anyone else’s does, either.  Even John Von Neumann had to develop complex mathematics and sophisticated models to deal with the limited degree of uncertainty in highly simplified versions of one-on-one poker.  If he was so intrigued by what he‒possessing perhaps the highest general intelligence of which history is firmly aware‒could not fully model, then this is strong evidence that no one, now or ever, has really been in control of anything.

Of course, game theory has advanced since Von Neumann co-invented it, and it is certainly useful, but it is clear that, at best, it deals in probabilities and tendencies.  There is no Asimovian 2nd Foundation Hari Seldon psychohistory that can figure out the specific events of whole galactic civilizations well into the future, and I doubt there ever will be.

Of course, if we want to be trivial, we can predict the far future with some degree of confidence:  Eventually, unless our knowledge of the universe is deeply mistaken*, as entropy increases inexorably, new stars will stop forming, old stars will burn out (even red dwarfs), black holes will evaporate, and the universe will be a thin haze of elementary particles.  Indeed, if everything eventually reduces to massless bosons (e.g., photons) then in a very real sense, time will literally have no meaning, since photons, being massless particles, do not “experience” time.  From their point of view‒to speak very figuratively‒their entire existence is instantaneous.

Of course, going on to the very far future, given the nature of probability, new universes may arise.  Something like Penrose’s conformal cyclic cosmology may be the way things happen, or there may merely be a Poincaré recurrence of the universe.  Or maybe, as I’ve speculated previously, time is not one way, and our future might also be the future of another, far distant “big bang” but for which time/entropy increases in the opposite direction.

Also, of course, if civilization and intelligence persists and grows, which is not a small “if”, then who knows where technology will develop?  Our descendants could conceivably develop the capacity to do cosmic engineering, literally shaping the large-scale development of the universe, or even making new ones.

But I suspect they still will not be able to micromanage perfectly the interactions of innumerable agents in complex systems.  Some limits are fundamental, and I think this may be one.  This comes down to something related to my “Elessar’s First Conjecture/Theorem”, that no complex, intelligence can ever fully understand itself in detail, because to model a given complex system requires a system of greater complexity, which itself will need to be described, leading to an infinite regress.

And, of course, we know that in complex systems, in which interactions are stochastic and multivariate and nonlinear (and thus exhibit chaotic development) the specifics of future happenings will be unpredictable since to know them perfectly, we would need an infinite number of significant digits**, though in some cases‒like entropy‒we can make general predictions with high confidence.  

This is part of why “planned economies” fail, and almost certainly always will, unless they are stupendously lucky.  In any case, such luck will not last, just as neither strength nor good purpose will last in the presence of the One Ring.  This is also why most complex conspiracy theories are simply laughable.

People derive their models of the world to too great a degree from our ubiquitous visual entertainment, which has been around long enough to be deeply self-mimicking and self-derivative.  Gunshots and explosions don’t behave in real life the way they do in action movies, but action movies (and shows and videos) take their models of the world from previous action movies, much as an AI’s model of human speech and interaction, if derived from the internet, is going to be increasingly contaminated by the products of other AIs, and may end up veering far away from anything reminiscent of human interactions, at least if left to its own devices.

Maybe that’s an advantage of written fiction over movies and TV and other videos; it’s not presenting a simulation of some version of reality, it’s telling you a story, describing things, but you have to imagine them.  Meanwhile, if all your fiction is in words, your physical intuition of the real world‒and your psychological and sociological and economic intuition‒would be derived from real events, not the Machiavellian machinations of Manichean movie-based manipulators.

That was an interesting stream of consciousness, if I do say so myself (and I do).  Who could have predicted it?  Not I.  And I’m the one who wrote it.  Which goes to my point.

Please try to have a good day.

*This is always possible in principle, but for many aspects of cosmology, our credences can be justifiably high.

**I sometimes say that while knowledge can vary greatly, ignorance is always infinite.  This can be proven with a single, simple example:  the digits of pi.  There are an infinite number of them, and no matter how many we calculate, there will be an infinite number we don’t know.  Ditto for e and any other transcendental numbers, let alone all the other real numbers that have no specific designation, of which there exist an uncountable infinity.  And this is just one place where infinite information dwells, of which we will always have only finite knowledge.

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In the voids between galaxies, it’s already next year, but there’s still no life there.

It’s Tuesday, now‒the first Tuesday of the new year.  This is not anything particularly interesting, of course.  It’s really just another day.  But it is also the last day of the first week of the new year, the 7th day of the year, as indicated by the fact that it is January 7th.

“Brilliant, Holmes!” I hear you say.

In this case, though, it truly is elementary.  It’s also pretty boring, so I’m sorry to go on about it.

There have been troubling things in national news, of course:  the terroristic suicide attack-by-vehicle in New Orleans; the guy who blew up his cyber truck; severe cold weather striking large swaths of the eastern US; and, of course, no one has yet yelled “Psych!!” regarding Donald Trump’s election for a second term as president.

I’m not as rabidly anti-Trump as many; he’s just a man, of soft and squishy flesh and blood, like everyone else.  He’s also just one more incompetent government official on a world stage that might as well be a collection of (poor quality) Three Stooges clones.

It would be remarkable and praiseworthy if humans actually elected smart, calm, intellectually honest government officials with personal integrity.  Alas, when holding elections, humans seem unable to be as rigorous in their evaluation of candidates as they would be when screening babysitters or even gardeners.  And, of course, since few people are in the habit of reflecting on themselves in any way to improve on their own flaws in judgment, it seems unlikely that things will change very quickly.

This is all nothing new, of course.  The modern shape of cyberspace and the borderline-antisocial media add little twists and peculiarities, introducing new dynamics to the system.  But the dominating principles of primate social and sexual dominance hierarchies and displays have not changed much, if at all.

The only really interesting thing I’ve found in the news is the statement about a new study‒an elaboration of a first theoretical paper from some years ago‒that proposes a potential alternative explanation for the fact that the expansion of the universe appears to be accelerating that doesn’t require “dark energy”.

The cosmological principle, which underlies the usefulness of standard model, lambda-CDM cosmology, states that, on the largest of scales, the universe is uniform and homogeneous.  However, on anything other than the largest scales, the universe is decidedly clumpy.  This is because of gravity, of course, pulling things together in regions where things are more dense (making them still denser) and making the spaces in between ever more rarefied and so on.

But, of course, gravity is not just a simple attractive force; it works its effects through the warping of spacetime, and in ordinary circumstances (so to speak) its effect on time is far more significant than those on space.  This is a very real effect, one for which we have to adjust when using GPS satellites for instance, so while general understanding of it may be relatively rare, it is not an esoteric bit of physics.  It’s textbook stuff.

The point being made by this new hypothesis is that perhaps there is no real dark energy, but instead, in regions where more mass exists, time slows down.  This is a bit of an oversimplification, but it’s quite true, and indeed, to a large extent, all the apparent physical effects of gravity are produced by the differential flow of time between places where the manifold is more vs. less curved.

So, in the places where matter/energy is relatively scarce, time moves “more quickly”.  So, since the universe is definitely expanding (due to the Big Bang), those regions are going forward through their expansion more quickly than regions with more matter, and so the space between galaxies and clusters appears to expand more quickly, and as the comparative difference, the contrast, in energy concentration increases, the difference in passage of time will tend to increase, too, producing an apparent accelerated expansion.

[Note to self:  how would this model be expected to affect the extreme measured uniformity of the Cosmic Microwave Background?  Is this going to be a point of evidence against it?]

This is not a definitive, tested hypothesis, but it rests on sound principles.  It probably won’t supersede lambda-CDM, but it has the potential to do so.  This is no crank, RFK Jr. style hypothesis by any means.  I haven’t read the papers involved yet; rather I read articles and watched some videos about it; I will try to learn more.

But, since the discovery of the accelerating expansion of the universe in the late ‘90s was the single most exciting (non-personal) event in my life, the idea that there is a new approach that might change that again is also truly exciting.

It makes me wish I had just gone into physics as I had originally intended.  However, post-open heart surgery, transient cognitive impairment, and an exacerbation of depression triggered by the same thing, made it too difficult, in the short term, to keep up with my physics and math classes in the semester after my heart surgery, so to English I went.

But as I picture the large-scale universe differentially flowing through time and thus expanding at relatively different seeming rates, producing this wonderful, higher-dimensional twisty-bulgy-filamentous shape, I can at least feel a little twinge of the joy of contemplating science.  My only real contribution to science was in studying the effects of gliotoxin on naked DNA in vitro, and though that’s quite interesting, it’s not exactly cosmology.

Oh, I also wrote a pretty decent review article about the various effects on cognition and other neurological functions of heart-lung bypass as done during open-heart surgery.  Clearly, that was motivated by personal experience.

Anyway, that’s it for today.  Tomorrow begins the second week of the year, but I don’t expect to write again before Thursday.

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But darkness and the gloomy blog of death environ you…

Hello and good morning.

If you’re a regular reader, you know what day it must be if I’m using that opening phrase.  It’s Thursday, the third one in December of 2024 AD (or CE if you prefer).  There’s only one more week until Boxing Day, so keep your training up!

You should probably take a rest on the day before Boxing Day‒“Boxing Eve”, if you will, though there are other names for the day, I’m led to understand.  In many places, people take Boxing Eve off from work, so it might be a good time to kick back and relax your body, to let it recover from your training.  Get a decent meal with plenty of protein, but abstain from alcoholic beverages* entirely.  And keep the refined carbs to a minimum.

Also, of course, you should not listen to songs like Baker Street, or Careless Whisper, or Turn the Page.  While it’s slightly controversial, many experts agree that one should avoid sax before a fight.  You might even want to avoid Feels So Good, by Chuck Mangione, for though he plays the flugelhorn, not the saxophone, the sound is similar, and science is not entirely certain which aspect of the sax’s sound interferes with boxing ability.

It may simply be that it leaves a person too relaxed and at ease to be at their fiercest.  So, perhaps one should just avoid soothing music altogether, and stick with environments that keep one hostile and alert.  Remember what Palatine said about anger:  “It gives you focus…makes you stronger.”

Fortunately, many people find the traditional Boxing Eve celebrations with family quite stressful and irritating.  You gotta hold on to that fury.

All right, enough of that silliness.

Next week is also the beginning of Hanukkah, the first night of which begins on Boxing Eve (also known as “Christmas”, which is a curious amalgam of Saturnalia and the Nordic Yule grafted onto the celebration of the birth of the founder of an obscure Jewish sect).  None of this stuff is really of any consequence to me, though; I’m not celebrating anything.  What cause would I have to celebrate, and with whom would I do so?  Nothing and no one.

I’m frankly discouraged that it looks like I’m going to be around to see a new year.  Of course, every day is, in principle, the beginning of a new year, just as every second begins a new hour, and every day is the last day of your life so far, for whatever that’s worth.  I wouldn’t think it would be worth very much, but who knows?  Worth is a very subjective thing.  It can be intersubjective, but unless you’re talking about things like food, water, air, and shelter, most values are related to the valuer and the culture such a valuer shares with other valuers.

Stepping farther back, even the seemingly inherent value in things like food, water, air, and shelter is predicated entirely on the needs of living creatures‒subjects, if you will.  Life itself is an entirely subjective value, at least in that sense.

Please note that I’m not saying that reality is subjective!  One’s personal experience of reality is, to some degree, subjective, but reality itself is what it is, not what individual persons believe it to be…unless those persons happen to believe it to be as it is, whether through luck or discerning thought and perception.

Anyway, this is all pointless.  I tend to try to cloak my inner darkness in humor and whimsy for other people’s sake.  This might fool you into thinking you’re seeing someone who’s not really unwell, not really so down, not really doing all that badly.  Similarly, an active accretion disk might make you think a particular astronomical object is inherently bright, staggeringly so even.  But that radiance is merely the conflagration of all the matter spinning and colliding and accelerating and trying to squeeze into limited, rotating spacetime before passing the event horizon.

With the exception of Hawking radiation‒which is smaller and fainter the larger the black hole‒the event horizon is a surface of absolute darkness, at least from the outside.

You might ask why there could not be something even darker than a lack of light, perhaps some form of antilight.  But, no.  Photons are bosons, and bosons are, in a sense, their own antiparticles, so the opposite of light is just light.  Under normal circumstances, bosons don’t self-annihilate, though they can destructively interfere, in a fairly straightforward, wave dynamics kind of way.

This blog post, and the blog itself, is in a sense my accretion disk.  It may be hot and sometimes bright, in an ordinary incandescent way, but so many things burn and flare, hot and bright and fierce and beautiful, even as they fall to ashes, never then to shine again, reduced to a state of maximum local entropy.

And, at the heart of the black hole‒at least in GR, avoiding quantum mechanical concerns**‒lies the singularity.  It’s appropriate.  The center is a singular entity‒like a singular person‒which does not entail anything but an end to time itself, the complete obliteration of anything and everything and everyone that it encounters.

No wonder people stay away from such individuals.

TTFN

*In some cultures, people tend to drink alcoholic beverages on Boxing Eve.

**Which you can’t really do, to be honest; see my point about reality not being subjective.