Physics

by

“We would zig-zag our way through the boredom and pain”

It’s Monday again; indeed, it is the last Monday in March in 2026 (AD/CE), for whatever that’s worth.  This Monday shall never come again.

Then again, of course, no Monday shall ever come again.  Such is the nature of time.  This is one of the facts that makes senseless the expression “That’s a [measure of time] I’m not gonna get back”.  Well, duh!  You never get any of your experienced amounts of time back.  That’s the nature of time, and the nature of its directionality, dependent upon the second law of thermodynamics.

Even if one could rewind time, one would not “get a moment back” the way people talk about it.  If, like the events of a movie or other video story, one could rewind life, it would not be you (the self who spoke of getting the moment back) who would experience the events anew.  It would just be a return to an earlier state, in which you would again be experiencing all the same events, not merely as if for the first time, but actually for the first time.  The posterior events would be erased for you as you traveled back.

It’s not like playing a video game where you can “regenerate” at your most recent save point, but you can remember what happened to your character before it “died” so that you can learn from your mistakes.  There is no one playing your character (i.e., you) and able to learn from a repeated past.  You are not the player of the game, you are the character.  You are part of the game.  You are part of the movie, not watching it from outside.  If it resets, you reset; if it rewinds, you rewind, and all memory of any events that happened disappear along with the future.

Whether or not you will repeat the same events, like the characters of a movie/show, or if you may do something different, like a video game character, is less clear, but it doesn’t much matter.  You are still going through each moment once, effectively, and you can only learn from mistakes to affect your behavior in the future.  If your mistake kills you, you’re just dead.

Even if time were a closed loop‒if the future of the universe wraps around and becomes “the past” again, forming a closed and fixed structure, as appears to be possible in principle according to General Relativity‒you won’t get to experience it as happening again.  Each time, you will experience reality for the first time.

Just as there is no fixed self looking out from behind your mind, there is no external rememberer hovering over your reality, able to experience your experiences for the first time but as if not for the first time.  You are a phenomenon within reality, not a sojourner through reality that accumulates knowledge that could be used in reliving the past, but better.

If you could rewind yourself except for your mind, somehow retaining your memory of “the future”, that would not be truly returning to the past.  Rather, it becomes the next set of events in your future.  This demands an answer to the question of how it could be possible for you to become your earlier self and yet remember your later self, since your memories are functions of your brain.

This is what makes things like Alzheimer’s and other forms of dementia or brain damage so tragic‒they literally are injuries to what makes us ourselves.  If you lose all memories of your past, then in a very real sense, the person you were is already dead.

Of course, even in healthy states, without brain damage, your past self is still “dead” with every new moment that arrives.  Every time you sleep and then wake up, it may as well be that you have died and then been recreated in the morning, just with implanted memories from the previous person, the one who died.  There would be no way for you to know if there is no difference in your brain and the rest of your body.  Indeed, it’s in principle possible that this actually happens with each passing moment, or even each passing Planck time.

Only the past can be remembered.  Only the future, even in principle, can be planned and affected.  And only the ever-moving present can be experienced.  There is, of course, a continuity that is required for us to have any sense of a unified personhood at all, but as Sam Harris has pointed out (more than once) your memories of your past are merely thoughts in your mind in the present moment, as are your plans for the future.

So it really can make sense to “get over yourself”, in more than one way.  It’s worth recognizing that you’re mortal and‒whatever you may believe‒as far as we know, death is the end, and all that you were will be gone after that.  But it’s also worth recognizing that, in a nontrivial sense, each day all that you were the day before is already gone.

Still, though you are only existing for any given present moment, memory at least allows for us to learn and hopefully do better in the future than we would have if we didn’t have memory.  That’s why memory is a trait that gets selected for and is evolutionarily stable:  because its presence makes creatures with that trait or attribute more likely to survive and reproduce than those that do not have it, ceteris paribus.

As with most such subject-specific blog posts, I could go on and on about this.  A thousand (or, well, a lot of) other thoughts arise that could be expressed as I write what I do write.  But I have finite space and finite time (even if spacetime is infinite) in which to write this post, so I’ll stop here for the moment.

Welcome to the new week.  I hope it’s a good one for you.  Heck, I hope it’s a good one for everyone, even “bad” people (with the caveat that, “a good one” entails such people becoming better than they presently are).

by

Sometimes drunkards walk to interesting places

Well, well, as the oil tycoon said*.  It’s Saturday now and I am actually writing a blog post, as I expected I would.  It’s been three weeks since the most recent prior Saturday morning post (not counting my “non-post” from last week).  But today, this weekend, I am going to work, and so I am writing a post.

I hope you’re proud of yourself.

Okay, well, that last sentence doesn’t really make sense in this context, but I felt the curious and rather inscrutable urge to write it, and there was no real downside to doing so, so I did.  These are the sorts of things that happen in biological, nonlinear, largely subconscious brains that are communicating using language (especially written language, in my case).

A truly efficient, direct, deliberately programmed AI (not a neural net style, LLM type of AI, but one whose algorithm is precise and understood) might not produce such erratic and seemingly peculiar thoughts.  But maybe it would.  Maybe one cannot have actual intelligence, with creativity and the like, without having a system that meanders a bit into the highly tangential.

I suspect this may be so, because in order to grow and gain new knowledge, to be creative, there has to be a capacity to embrace the unknown‒not in an H. P. Lovecraft sense, but more in a sense reminiscent of Michael Moorcock’s** character that strode into chaos and by interacting with it caused it to become a locally specific order***.

The potential paths into the future which one might, in principle, explore are functionally limitless, and may actually be infinite.  It’s not possible to evaluate them comprehensively through any kind of linear logic‒not in the time span available to the universe, anyway.  So, to work things better, there must be a bit of potential for “randomness”, for moving forward into a future that is one’s best guess, or into which one has narrowed down at least some of one’s choices.  Then one can find a “good enough” path or course of action, one which may produce insights and outcomes that were not, in practice, predictable by any finite mind.  (In a way this follows from the fact that, if you can precisely and specifically predict what insight you are going to have, then you have already had it.)

It’s a bit like evolution through natural selection, where the mutations are effectively random, but the survival of those “mutants” is not at all random, at least in the long run, on a large enough scale.  Still, there’s no pre-thinking involved, no teleology, merely “motion” that is constrained (by differential survival due to the facts of surrounding nature).

Even if one has a fairly specific goal, trying to plot out one’s way through the phase space of one’s potential future paths in a very specific and precise and preplanned course is unlikely to be doable.  It may not be preferable even if it were possible.

It may be analogous to trying to get from one location to another in, say, the same city, by following a direct, straight line from one spot to the other.  One probably won’t be able to make any progress at all for very long; buildings and streets and vehicles and the like are probably going to get in the way.  Heck, the very surface of the Earth could be an impediment to any truly straight path, since it is curved****, but we’ll stipulate that you can follow a geodesic (the shortest distance between points on a curved surface).

Anyway, if one precisely follows only a preset straight path, even if one can more or less achieve it, one misses out on many potentially beneficial but unpredictable paths.  Imagine one is heading to one’s usual, mediocre but tolerable, fast food restaurant for lunch, and one only goes straight there without even looking around.  One might well miss seeing all the many other available restaurants, some of which one may find preferable‒perhaps by a great margin‒to one’s “planned” place.

That’s a slightly tortured metaphor, and I apologize for that fact, but I hope you know what I mean.

It doesn’t do‒usually‒to try to make progress by a true random “drunkard’s” walk.  I don’t recall what particular power law the number of possible outcomes follows, but it grows very rapidly, perhaps exponentially, with each new step.  But if one keeps one’s long term goal generally in sight, and one heads in that general direction, adjusting for buildings and railroads and hills and lakes and so on, constantly assessing and, when necessary, adjusting one’s course, one can usually not only get to one’s destination rather well, but one can encounter new sights and new experiences along the way.

Some of these encounters might even make one decide to change one’s goal of travel, having found a better one (by whatever criteria) as one went along.  That’s not going to happen to someone who is dogmatically focused on only one path and only one goal.

Okay, well, that’s my rather stochastic blog post this Saturday.  I hope you are already having an excellent weekend, and that it continues to be excellent (or if it is not yet excellent, that it becomes so in short order).  Thank you for reading.

*To his son, Derrick.

**I don’t remember which character‒it’s not Elric‒or which story.  My apologies.

***Of course, as I think I’ve said before, order is not the opposite of chaos, but is rather a subset of it.

****It is.  Seriously.  There is no reasonable doubt about that fact, and it has been known to humans for at least 2200 years, since Eratosthenes calculated (correctly) the circumference of the Earth using distance along what was effectively a geodesic and the angles of two simultaneous shadows.

by

Blog, we know what we are but know not what we may be.

Hello and good morning.  It’s Thursday again, and out of tradition I’ve started this blog with “Hello and good morning”, which you’ve already seen but might not have noticed.  Speaking of tradition, I’m also writing this post on my lapcom, partly for just a changeup, and partly because my thumb/wrist arthropathy has been acting up quite a bit, so I brought the lapcom back to the house with me on Tuesday evening.

Speaking of Tuesday evening going on to Thursday morning, I was out sick yesterday, and so I did not write a blog post.  I did work from “home” for a bit, because it was payroll day, and obviously I needed to get that done or else people won’t get paid.  But I wasn’t in any mood to write a blog post from the house.  I didn’t even have the energy to leave a little quasi-post like I did on last Saturday, just to let people know that I was not going to be writing the expected full post.

Honestly, I don’t feel terrific even today, but I do feel a bit better than I did yesterday, at least for the moment.  If human civilization were sane or even slightly reasonable, I would feel no qualms about taking a second day off, because no one else would expect otherwise.  But I cannot feel comfortable doing that, even if other people would not mind.  It’s a pathology, of course, but there it is.

Still, if I leave things at the office for too long, when I get back it becomes too stressful because there’s so much catch-up work to do (thank goodness, we got rid of all our mustard work long ago)*.  Luckily, I still have plenty of face masks available.  Indeed, I often consider trying to find a brand that I like and can wear every day, all day.

I’m not a fan of my face.  There are too many signs of the past 20 years or so on it.  It’s possible that these signs are things no one else would notice, but that hardly matters, because I am the one bothered by it, and I and the one stuck with this face.

It’s not an emergency.  I don’t feel like I must cover up my face, like Doctor Doom or the Phantom of the Opera or something.  It just annoys me.  Don’t get me wrong, I don’t wish I looked like someone else, anymore than I wish I were someone else.

I can’t even see how that could work in principle.  If everything about me changed into someone else, I wouldn’t exist anymore, I would be someone else.  But that wouldn’t be me experiencing the process of being someone else; it would just be someone else.  Nothing of me would come along.

I guess I just would prefer it if I could be a better version of me.  I work on it, of course; I don’t just wish for it.  I’m always trying to improve in any way that I can.  And the good and bad thing about self-improvement is that there is no finish line.  One can always be better—by almost any criterion one might choose—than one currently is.

This is similar to—and may be related to—the nature of intelligence and ignorance.  Intelligence can increase without any known limit, in principle, but everyone is always infinitely ignorant and always will be.  There is always an uncountable infinity worth of potential information one could know but does not (just within, for instance, the digits of π alone, apart from the uncountably infinite other Real Numbers).

This is a blessing and a curse, as such things tend to be.  It is a curse in the sense that one can never know everything there is to know, and therefore, in principle, one cannot know that one knows the most important things to know.  On the other hand, it is a blessing to know that one can always become smarter, more knowledgeable, than one currently is.

You can’t keep building muscle indefinitely; you can’t run faster or swim faster or bike faster without limit.  New Olympic records are set by tiny, tiny margins.  But while there surely is a physical upper limit to possible human intelligence—based upon information theory, thermodynamics, neuroscience, general relativity and so on—as far as we can tell, no one has ever gotten close to that upper limit.  You can keep learning new things every day that you are alive**.

This is a notion I wish more teachers would explain to their students.  Yes, it’s true that different people have different aptitudes for different subjects.  But unless there is real and serious pathology, anyone can get to the goal in time.  Your fundamental limits are processing speed and memory.

If your onboard, RAM-style memory isn’t great (and no one’s is VERY great) then you can store things externally, using written language.  If your processing speed regarding, say, 17th century British literature, is slow, you may reasonably choose to do something else.  Had you but world enough and time, you could learn anything, but you don’t have world enough nor time.  In principle, though, you could learn it.

Motivation, drive, impulse is/are factors holding people back more than anything else, as far as I can see, and it’s perfectly understandable.  Thinking requires a lot of effort—fully 20% of our bodies’ calories are used by our brains***.  One wants to choose as wisely as one can just to what to apply that energy.

In principle, one cannot know for sure if one will make an optimal choice—that’s the whole “unknown unknowns” thing—but that’s part of the point of decision theory.  We have to make decisions with incomplete information, pretty much every single time.

That’s okay.  It’s much more fun to be surprised by the things one learns than just to have more of the same.  The most exciting non-personal moment in my lifetime so far was in 1998 when it first became clear that the universe was not merely going to keep expanding (rather than recollapsing) based on data in the supernova studies, but that the expansion of the universe was increasing in speed!  Literally, my picture of the whole universe changed, and it was amazing.  I cannot properly explain just how invigorating it was to learn about this.

Look at me, being slightly positive in my blog.  I must be ill, huh?  Anyway, that’s enough for today.  Presumably, I’ll be writing another post tomorrow, but I never make an absolute guarantee.

TTFN

*Sorry, I know it’s a stupid joke, but I’m sick.  Please give me a break.

**And in a certain sense, you do this no matter what:  at the very least, you learn what it is to experience that day.

***Though there is reason to suspect that some politicians use a significantly smaller percentage, as do some of the people who vote for them.

by

You’re so vain, you probably think that nothing matters

I was going to start by saying that I had probably written all I could about Friday the 13th and the fact that there are 2 in a row when non-leap year Februaries have Fridays the 13th, and that a first glance might lead one to think this should happen roughly every 7 years on average*.  However, as I noted last time I discussed this, because the leap year day is in February, we will not have the two-in-a-row Fridays the 13th (February and March) as often as we might otherwise; it will not happen every 7 years on average.

Then, this morning, after recalling that today was Friday the 13th, I ran through the next years’ Fridays in my head in the shower, and it occurred to me that the next Friday the 13th in February‒which will be in 6 years, as I noted in the past‒will not be followed by a Friday the 13th in March!  2032 (six years from now) will be a leap year, so there will be 29 days in February, so there will be no Friday the 13th in that March.

The next paired ones, then, will be a further 5 years after that, in 2037 (not a leap year).  It would have been 6 years later, but there are two leap years in that interval, 2032 and 2036, so the next one comes a year sooner than it would otherwise.

It occurred to me that, because of the frequency of leap years, which is almost twice that of the cycles of days of the week, the frequency of those paired dates may well be once every 11 years rather than every 7.  At least those are both prime numbers.  I’m not going to work out some exact formula right now, though.  It’s not really important.

Of course, one could say that nothing is truly important, and I am persuadable along those lines.

There is a Doctor Who Christmas Special (the one from series 5) in which the antagonist/guest protagonist (played by Michael Gambon!) describes a woman in a cryo chamber as “nobody important”, and the Doctor characteristically responds by saying, “Nobody important?  Blimey, that’s amazing.  You know, in 900 years of time and space, I’ve never met anyone who wasn’t important before.”

This is typical Doctor, of course, but it raises the objection Dash (from The Incredibles) voiced when told that everyone is special:  Saying that everyone is important can be the same thing as saying no one is.

Of course, important is in the eye of the beholder.  But then again, the beholder is not important, either, except in its own subjective estimation and perhaps that of a few other, equally unimportant, owners of such eyes.

So, yeah, one could argue relative and subjective importance from local points of view, which is valid but more or less vacuous outside its small scale as far as I can see.  On a cosmic scale, it’s all just dust and shadows.  But you could also say that about the entirety of the cosmos itself.

I guess import has always been subjective, even though people are not inclined to see it that way.  But, of course, people are the products of their “local” forces, and they are not responsible for the laws of nature, nor for the things which have happened in the past that have affected them in the present (which could come under a certain interpretation of “the laws of nature” in and of itself).  I won’t get into all that now.

Going back to the shower, but on an entirely different subject, I was also thinking about the effects of diminishing amounts of shampoo in the bottle on the center of gravity of the bottle.  At the start, when it’s full, the center of gravity is roughly in the geometric center of volume of the whole thing.  But as one uses the shampoo, the center of gravity shifts lower and lower, since the air replacing shampoo in the upper part of the bottle is much less dense than the shampoo or the bottle.

But then, as one gets to the dregs, the smaller and smaller amount of shampoo in the bottle contributes less and less to the overall mass distribution of the bottle and its contents, and the center of mass begins to head back up.  Finally, when the bottle is “empty”, the center of gravity will have returned to almost the same place it was when the bottle was full.

All that’s fairly trivial, well-known stuff, I know.  But it got me to thinking about how much of the laws of physics, such as the laws of gravitation (Newtonian form), are solved using such concepts as the center of mass, which is really just a way of combining and averaging the effects of numerous tiny bits of gravitating material as if they were concentrated at one point.

Much of the mathematics of physics works this way, coarsely approximating the very fine details of reality in a way that provides reliable, reproducible guidelines and can produce testable predictions.

But the granularity of reality doesn’t actually ever go away, not at any level.  Even at the level of the quantum wavefunction of a single “particle”, the actual behavior of the thing as it interacts with things in the “larger” world is the summation of the effects of all the possible quantum states of the electron superposed upon each other and interacting with things‒everything‒which are also just collections of superpositions of quanta.  That superposition happening in a “space” that doesn’t directly coincide with the macroscopic space we experience, but whatever its dimensions are, they are real, because they have durable, reproducible effects.

Mathematics may be unreasonably effective in the physical sciences, as Eugene Wigner famously noted, but it seems not to be a refining of description but rather an averaging out, a glossing over, the inking of an underlying rough pencil drawing which nevertheless still constitutes the real, original picture.

It may be that, in a sense, all science is just various forms of statistical mechanics.  We know that, at larger scales, we definitely need the tools of probability and statistics to navigate as best we can the territory of reality.  And yet, we don’t teach this sort of stuff to most people, ever.  I wrote a post about this on Iterations of Zero, if I remember correctly.

I could go on about all this rather easily, I guess, but I am using my smartphone today, and my thumbs are getting sore.  That’s okay; yesterday’s post was probably way too long, anyway.

If I did a video of my thoughts on this I might be able to get into more detail, though it would probably be even more erratic and tangential than my writing.  Still, maybe it would be worth trying.

In the meantime, I’ll write at you again tomorrow.

*Go ahead, do a search on my blog page for Friday the 13th; I’m all but sure it will bring up the pertinent blog posts.

 

by

If you can look into the seeds of time, and blog which grain will grow and which will not

Hello, and also, good morning.

What to write about, what to write about‒that is the question today.  Of course, “to be or not to be” is always the question as well, as was recognized by Camus in The Myth of Sisyphus.  If I recall, he arrives at the conclusion that the titular rock-rolling protagonist must be “happy” despite the patent and constant pointlessness and absurdity of his existence.

That goes along with the whole recognition of the absurdity of life itself that is central to the existentialism movement.  Still, it’s hard for me to “imagine Sisyphus happy”, unless he was a true Bodhisattva or had been thoroughly lobotomized by Zeus (or whoever it was that had doomed him to his…well, his doom).

It can help, I guess, to think about the vast scale of the cosmos in space and time (and any other dimensionality that might apply) and also about the incredibly minute scale of the cosmos, the fundamental quantum fields (and whatever gravity ultimately is) interacting from the Planck scale on up.  It helps keep things in perspective.

Of course, even given the scales of the cosmos*, there’s another, almost sort of Buddhist/Taoist notion that notes that each individual‒each particle even‒always exists at the nexus of two “light cones”, existing in an ever-moving now.  These are 4-dimensional cones, by the way, but it’s okay to reduce things by one dimension if you will.  It makes them easier to visualize.

Your (or anyone’s) past light cone is the outer boundary of all influences that can possibly have had any effect upon you at the present moment‒those influences that could have reached you at the speed of light or more slowly.  Similarly, one’s future light cone encompasses all those things that could possibly be influenced by things at the present location at or below the speed of light.

Any motion within the light cones‒the only motion that anything within spacetime can execute, as far as we know‒is called timelike motion.  Any motion that would require going outside a light cone is considered “spacelike” motion, and is not allowed by relativity.  This is not merely because of the speed of light, it’s because the speed of light is defined by the speed of causality.  Causes cannot travel faster or have effects beyond the speed of causality.  This is a bit tautological, I know, but it nevertheless simply must be true.

So each individual’s experience, each individual process, sits at the moving balance point of a future light cone and a past light cone, crossing at the moving present, tracing out a “timelike” path in spacetime.  Of course, individual creatures are not individual particles, and so their overall spacetime path would resemble the final line produced by a sketcher going over and over a particular path to make the curve the artist desires.

If one could look at the structure of a human in spacetime, like the Tralfamadorians of Slaughterhouse Five, but one could also trace even the spacetime paths of individual “particles”**, a human life would be a sort of higher-dimensional braid in spacetime, surrounded by a haze of incoming and outgoing quantum entities, most of which will be locally bound and interacting, and so will be moving at a net velocity lower than the speed of light.

I’m assuming you don’t eat your food or drink your water or breathe your air or (shudder) sweat or excrete at near light speed.

Imagine what the inside of a mere proton or neutron might look like if one were able to see it as a rendered, four-dimensional model in fine detail!  If you think it wouldn’t be that interesting because it’s so wee, think again.

Remember, only the tiniest fraction of the “rest mass” of a nucleon comes from the mass of the three “net” quarks in it (two up, one down or two down, one up depending on whether it’s a proton or neutron).  Almost all the rest of its mass is the energy of the interactions between these three quarks:  all the gluons exchanged, all the virtual quark/anti-quark pairs popping into existence, mediated by that famous strong force and its weird*** “asymptotic freedom”.

Bringing this back around, I guess my point was merely to note that everyone and everything is pointless from the perspective of the laws of nature and the spacetime scale of the cosmos, but when you learn about those things‒the cosmos at large and small levels‒you are at least familiarizing yourself with those vast workings, and you are in a sense taking part of them into yourself.  That’s kind of a cool thought.

But don’t take too much of it into yourself!  For, much as would happen to someone who stuffed all the information about Graham’s number into one head, if you do you will become a black hole.  Now, it may be possible to survive becoming a black hole, but I don’t recommend betting on that pony.

TTFN

*I wrote a post on Iterations of Zero about how it might be useful for people to consider the cosmic perspective as contrasting with their prosaic concerns.  I don’t remember how good it was, but here’s the link, in case you want to read it and give any feedback you like.

**I use this word for want of a better term that everyone would recognize and that would be succinct.  I think we need such a different term, because a lot of the perceived so-called weirdness and mystery of quantum mechanics comes from trying to use inaccurate terms that originated in times before we understood things as well as we now do.  Quanta are not little “particles” that sometimes act like waves, nor are they little waves that sometimes act like particles (though that’s slightly more accurate).  They are entities unto themselves, and the ways they behave are all always consistent with that nature.  They don’t sometimes act like one thing and at other times act like another.  They all, always, act like what they are.

***Except it’s not weird, really.  Those of us who are surprised by it?  We are the weird ones.  Quantum chromodynamics has always done exactly what it still does, since long before any life at all existed in this universe.  To quote Yudkowsky again, “Since the beginning not one unusual thing has ever happened.”

by

Our wills and fates do so contrary run, that our devices still are overthrown; Our blogs are ours, their ends none of our own.

Hello and good morning.  It’s Thursday, the 26th of February in 2026, a date that’s only very slightly interesting whether you write it as 2-26-2026 or 26-2-2026.  The fact that you have repeated 2s and repeated 26s is somewhat entertaining, but the zero throws potential symmetries off, making it not nearly as much fun as it could conceivably be.  It’s a shame, really.  I suppose you could write it as 26-02-2026 and rescue a bit of symmetry, but that feels like reaching.  It’s not quite symmetrical anyway, unless one is writing in base-26 or higher.  No, wait, even that wouldn’t work.

I don’t know about what I’m going to write this morning.  That in itself, of course, is nothing unusual.  But I don’t feel that I have much to say about anything at the moment.  I don’t want to get into my depression and ASD and anxiety and chronic pain and insomnia and just general moribund state, because I’m sure no one wants to hear about it anymore, and in any case, there seems to be no way anyone can do anything about it that’s useful, which makes it all the more frustrating.  Writing about it certainly hasn’t cured or even improved my state much, if at all.

Anyway, as I said the other day, you have been put on notice.  Unless you just started reading my blog for the first time yesterday, you’ve no right to act fucking surprised no matter what happens.

Okay, that’s that out of the way.

Now, let’s see, what should I write today?  I could discuss some topics in science, especially physics, though I also have literal, legally recognized expertise in biology, and I know a lot about quite a few other branches of science as well.  This is because I have always been curious about how the world, the universe, actually and literally works on the largest and on the most fundamental scales.

I mean, yes, humans also have their rules and laws and social mores and antisocial morays and all that nonsense, but if you step back even a bit, you can see nearly all human behavior encapsulated by basic primatology.  If you know how the various monkeys and gibbons and gorillas and chimpanzees behave‒especially their commonalities‒human behavior almost always fits right in.  It’s usually not even very atypical.

That doesn’t make the specifics of behavior very easily predictable in any given case, necessarily; then again, we understand an awful lot about the weather and the climate, but the specifics of tomorrow’s weather are tough to predict precisely and accurately, let alone next week’s weather.  Nevertheless, the physics of longer term climate effects of certain kinds of atmospheric gases is almost trivial.

Anyway, humans are too annoying to be very interesting, except in special circumstances.  In this, they are perhaps a bit like cockroaches.  From the point of view of a scientist who studies them, they can be interesting, and from just the right angle and with the right detachment, they can even be beautiful (or some of them can).  But overall, they are merely large masses of highly redundant little skitterers, just doing their shit-eating and reproducing and infesting almost every possible location.

Which type of creature did I mean to describe just now?  See if you can figure it out.

Of course, on closer scales, cognitive neuroscience and neurodevelopment and related stuff, such as “neural” networks, “deep” learning, and other such areas are fascinating.  One thing interesting about them is how all the things that brains and computers and so on are and do are implicit in the laws of physics‒clearly they are some of the things that stuff in the universe can do‒and yet, for all we know, they have only ever happened here, just this once in all the vast and possibly infinite cosmos*.

And for all we can tell, given the human proclivity to plan about 20 Planck units ahead and then after that trust to luck, this could be the only place they occur, and their time will not continue much longer, certainly not on a cosmic scale.

I could be wrong about that…except in the sense that, since I am stating it merely as one of the possibilities, I am not actually wrong at all.  Even if humans do survive into cosmic time scales and become cosmically significant, it will still not be easily debatable that it could have happened that humans would go extinct and would fail to go anywhere but Earth.

Of course, depending on the question of determinism, I suppose one could say that if humans (or their descendants) become cosmically significant then there literally was nothing else that could have happened, at least as seen from outside, at the “end”.

On the other hand, if Everettian quantum mechanics is the best description of the fundamental nature of reality, then in some sense, every quantum possibility actually happens “somewhere” in the universal quantum wave function, though those variations may not include all conceivably possible human outcomes.

Some things that seem as though they should be possible may simply never happen to occur (or occur to happen?) anywhere in the possible states of the universe.  That feels as though it should be unlikely, given how many possible states can be locally evolved in the quantum wave function, but I don’t think we know enough to be sure.

Okay, well, I vaguely hope that this has been mildly interesting and perhaps thought provoking.  It would be enjoyable to get more feedback and thoughts, but I don’t have a very large readership, and only a certain small percentage of people ever seem to interact with written material in any case, so I’m probably lucky to get the feedback that I get.

TTFN

*With the inescapable caveat that, if the universe is spatially and/or temporally infinite, and if as it seems there are only a finite number of differentiable quantum states in any given region of spacetime (the upper limit of which is defined by the surface area of an event horizon the size of the given region) then every local thing that happens, and all possible variations thereof, “happen” an infinite number of times.  But given that all these regions are more or less absolutely physically distinct and incapable of “communicating” one with another, they can be considered isolated instances in a “multiverse” rather than parts of the same “local universe”.

by

Are gravity and frivolity truly opposites?

It’s Wednesday morning (not quite five o’clock yet) and it is February 25th.  There are only ten more shopping months until Newtonmas*.

For those of you who don’t know (and as a reminder for those of you who do know) Isaac Newton was born on December 25th, 1642 (AD**).  Now, there is a parenthetical here:  Newton was born on December 25th by the Julian*** calendar, which was the one used in England at the time of his birth.  By the Gregorian**** calendar, Newton would have been born in early January of 1643.

This might seem to imply that December 25th nowadays shouldn’t be considered Newtonmas, but of course, it’s a closer fit than celebrating the birth of Jesus on that day; supposedly, biblical scholars have found that Jesus was probably born in the summer or something.  As with many things, “The Church” appropriated the popular holidays celebrating the winter solstice and grafted Christian religious significance onto it.

There’s nothing particularly bad about that.  All these holidays and divisions of the year are fairly arbitrary (though celebrating solstices and equinoxes is common enough in multiple cultures, which makes sense because these are objective events in any given year that can be noticed by any culture that is paying attention).

The length of a year is a concrete, empirical fact, as is the length of a day and the length of a lunar orbit around the Earth.  None of them are straightforward multiples of each other, unfortunately‒they are waves that are not harmonically associated with each other.

I don’t know how long it would take for their “waves” to come back into some primordial alignment and “start over”, but it’s probably moot, because the length of a day and of a lunar orbit and of the orbit of the Earth are changing slowly.  The moon, for instance, is moving steadily (but very slowly) away from the Earth over time, and so its time of orbit is increasing (since things that orbit farther away orbit more slowly).

I think Kepler’s third law was/is that the period of a planet’s orbit around the sun is proportional to the 3/2 power of the length of the semimajor axis of its orbit.  I’m not sure if that exact power holds up on the scale of, say, the lunar orbit, but the laws of gravity are as universal as anything we know.  Indeed, there are materials that are opaque to light, but as far as we know, there are none that are opaque to gravity.  Gravity is nevertheless constrained by the geometry of spacetime, so orbits will always slow down at a faster rate than the distance from the center around which a mass orbits increases.

The inability of anything we know of to block gravity is one thing that makes me take seriously the notion that, at some level, there could be more than three spatial dimensions.  If gravity is not confined to three dimensions then nothing that is so confined could stop it; it would merely flow around any obstacle (maybe gravity waves, for instance, can even diffract around matter and energy, though that might not imply higher dimensions).

This is related, indirectly, to the fact that it is impossible to tie a knot in a string in 4 or higher spatial dimensions.

By the way, having those extra spatial dimensions curled up tiny, as is usually presented in depictions of the notions of string theory, is not the only way for them to exist and be undetected.  If most of the forces in the world we know‒the electromagnetic, the strong force, the weak force, and the various matter-related quantum fields‒are constrained to a 3-brane because their strings are “open-ended”, then we could live in a 3-brane (in which all other forces, including matter, are confined) nested in a higher-dimensional “bulk”.  Gravity could be conveyed by a “looped” string, which could pass through the 3-brane, interacting but not being confined to it.  This could also explain the comparative weakness of the gravitational force and might even explain dark matter (and why it is so difficult to detect).

This sounds extremely promising, maybe, but there are issues and hurdles, not the least that strings and higher spatial dimensions are very difficult to detect, if they exist.  Also, it’s very hard to pin down all the implications mathematically in a useful way.

I remember one lunch break when I was still in medical practice when I tried to see if I could work out mathematically if “dark matter” could be explained by a relatively nearby, parallel brane-universe (it would probably be more than one, but one was difficult enough) whose gravity spills over into and overlaps the gravity of our brane-universe.

Here’s a sort of reproduction of some of the scribbling I did then:

Unfortunately, though I could visualize what I was considering and get an intuitive feel for what the math would be like, my precise mathematical skills were just not up to the task of sorting it out rigorously.  Also, of course, lunch was not long enough, and I had many other things on my mind.  Anyway, findings like the “bullet cluster” provide some fairly strong evidence that “dark matter” is something physical within our three dimensions of space.

Okay, that’s enough for today.  I’ve managed not to talk about my depression and stress and self-destructive urges/wishes (except just now, of course), so I hope you’re pleased to have had those things cloaked from you today.

Take care.

*Working out the exact number of days, I think I figured that it was 302.  December 25th is 7 days before New Years, so it’s day number 358 in the (non-leap) year.  And today is the 25th day of the second month, and January has 31 days, so today is day 56 of the year.  And, of course, 358 – 56 = 302.

**Why not my usual “AD or CE?”  Because at the time, in England, it was just “anno domini”.

***Named for Julius Caesar, though as far as I know, he had no more to do with actually formulating that calendar than he had with the invention of the 7th month.  As far as we know, he wasn’t even born by the then-existing version of Cesarian section, which was more or less always fatal to the mother, and his mother lived well beyond his birth.

****Named after Pope Gregory XIII, also known (by me) as Pope Gregory Peccary*****.  He did not formulate the newer calendar, but supposedly he at least commissioned the Vatican astronomers to create it when it had become obvious that the Julian calendar was not quite tracking the actual year but was overshooting over a long period of time.  So, the Gregorian calendar is better named than the Julian calendar, or so it seems to me.

*****The nocturnal, gregarious wild swine.

by

Man overboard

As the real weekends go, it was better than most, to paraphrase The Wreck of the Edmund Fitzgerald.  By this, I’m referring to this last weekend, the two days before this day, of course.

I did not work on Saturday, which is good, because that would have been the third time in a row.  I also got to hang out with my youngest on Saturday, and we watched about four episodes of Doctor Who together, which was good, good fun.  I cannot complain about that in any way.

I have though a weird, disquieting, sinking sort of feeling that it may have been the last time I will see my youngest, or maybe anyone else that I love.  It’s is not one of those reliable sorts of feelings, like those that lead one to new insights in science or mathematics or what have you.  It’s probably more a product of depression and anxiety, the feeling that anything good in my life is sure not to last, if it happens at all, because I do not and cannot possibly be worthy of anything good happening to me.

Is that irrational?  Of course it is irrational.  It cannot be expressed in any sense as the ratio of two whole numbers, no matter how many digits they may have.

Wait, wait, let me think about that.  My thought, my feeling, was expressed above finitely.  That is, of course, a shorthand for what is really happening, but even if one were to codify those processes down to the level of each molecular interaction that affects any neural/hormonal process that contributes to my feeling, we know that must be a finite description (though it could, in principle, be quite large).

Even if we’re taking the full spectrum of quantum mechanics into account when describing my mental state, we know that quantum mechanics demands a minimum resolvable distance and time (the Planck length and the Planck time) below which any differentiation is physically meaningless.

A finite amount of information can describe the events and structures and processes in any given finite region of spacetime.  In fact, the maximum amount of information in any given region of spacetime is measured by the surface area (in square Planck lengths) of an event horizon that would span exactly that region, as seen from the outside*.

Any finite amount of information can be encoded as a finite number of bits, which can of course be “translated” to any other equivalent code or number system.  So, really, though the contents of my mind are, in principle, from a certain point of view, unlimited, they are finite in their actual, instantiated content, and can therefore certainly be expressed as an integer, and thus also as a ratio (since any integer could be considered a ratio of itself over one, or twice itself over two, etc.).

So, in that sense, my thoughts are not irrational.  Neener, neener, neener.

In many other senses—maybe not the literal, original sense, but in the horrified, cannot accept that not all numbers can be expressed as ratios of integers because that makes the universe too inconceivable, sense, among others—I can be quite irrational.

It’s very difficult to fight one’s irrationality from the inside, alone.  Even John Nash didn’t really beat his schizophrenia from within as shown in the movie version of A Beautiful Mind.  Also, his delusions in real life were far more extravagant and bizarre than those which appear in the sanitized version that made a good Hollywood story.

If one escapes from mental illness from within, one has to consider it largely a matter of luck, like a young child who doesn’t know anything about math getting a right answer on a graduate level, high order differential equation problem.  It’s physically possible; heck, if it were a multiple choice question, it might even be relatively common***.  But it’s not a matter of being able to choose to do it right and to know how it was done.

Severe mental health issues are going to need to receive assistance from outside, almost always.  This is not an indictment of them or of the need for help.

Surely, someone who has been swept off the deck of a ship by a rogue wave cannot be faulted for needing help from those still on the ship of they are to survive.  It would certainly seem foolish and almost inevitably fruitless if such a person tried to claw his way up the side of the ship to get back on board when there is no ladder and no handholds.  He should certainly not be ashamed that he cannot swim hard enough to launch himself bodily from the water and back onto the surface of the vessel.

One cannot reasonably fault such a person for trying to do the superhuman.  A person might try to do practically anything rather than drown or be eaten alive by some marine predator.  But, of course, barring an astonishing concatenation of events such as the time-reverse of the splashing entry into the ocean happening and sending the person out of the sea just as it was entered, such efforts will not succeed.

And though it might be heartening or at least positive for one to receive encouragement from those still on the deck—don’t drown, keep treading water, you can do it, you’ll make people sad if you drown, you deserve to stay afloat, I’m proud of you for treading water yet another day, it’ll get better, this won’t last forever, you’ve made it this far so you know you can keep going, you don’t want the people who know you to feel sad because you drowned, etc.—in the end it might as well come from the seagulls waiting to pick at one’s floating corpse.

Mind you, certain kinds of words can be more useful than others.  Words like, “Hey, around the other side of the ship there’s a built-in ladder; if you can get over there and time things right, you might be able to grab the lowest rung when the waves lift you, and then climb up,” might be useful because they are directions for using real, tangible resources that we know can make a difference.  Also, words like, “Hang on just a bit longer, we’re throwing down a life preserver on a rope so we can haul you up” would be useful, obviously, unless they were mere “comforting” lies.

Alas, though one could reasonably expect such literal assistance if one were washed overboard—the “laws” of the sea are deeply rooted in the hearts of those who work there, and they include a general tendency to help anyone adrift to the best of one’s abilities—when it comes to mental illness, the distress and the problems are difficult for others to discern and easy to ignore.  Calls of distress are often experienced as annoyances, and even treated with contempt, since those hearing them cannot readily perceive that they themselves might be similarly washed overboard at any time.

But, of course, they might be.

I don’t know how I got on this tangent, but I guess I never really do.  I just go where my mind takes me, and my mind is not a reliable driver.  It is, though, a reliable narrator.  It doesn’t matter, anyway.  Nothing does.

Anyway, here we go again into another work week, because that was what we did last week.  I wish I could offer you better reasons, but I’m really only good at breaking things down, destroying things, not at lifting anyone or anything up.  That comes from other regions and is conveyed by other ministers.

*From within an event horizon, the volume could be much larger than the spacetime that seems to be enclosed from the outside, because spacetime inside the horizon is massively curved and stretched.  It’s conceivable (at least to me) that there could be infinite space** within, at least along the dimension(s) of maximum stretch, just as there is infinite surface area to a Gabriel’s Horn, but only finite volume.

**See, mathematically, one can stuff infinite space inside a nutshell.  Hamlet was right.  He often was.

***Perhaps this explains why certain types of mental health problems can respond well to relatively straightforward interventions, and even to more than one kind of intervention with roughly comparable success, e.g., CBT and/or basic antidepressants and such.  These relatively tractable forms of depression are the “multiple choice problem” versions of mental illness.  This does not make them any less important.

by

Each new morn new widows howl, new orphans cry, new sorrows blog heaven on the face

Hello and good morning.  It’s Thursday (of course) and it’s also the 29th of January in 2026 (common era).  At least today’s date (the 29th) is a prime number, but other than that, nothing interesting about today’s date jumps out at me.

Not much interesting is jumping out at me about anything, come to think of it.  Not that there aren’t plenty of “interesting”* things happening in the US and the world at large; there are.  But they are largely just stress-inducing, and all too redolent of Yeats’s The Second Coming, i.e., “The best lack all conviction, while the worst / are full of passionate intensity.”  What rough beast indeed slouches its way toward Bethlehem to be born?

Meh.  It’s always been like that, though.  Peace and kindness in any populations are too easily infiltrated and spoiled by any freeloaders and parasites that come along‒on societal scales, these are often politicians as well as too many of the most wealthy individuals, though it would be foolhardy to say that they are all parasites or that they are the only ones.

In any kind of ecosystem that’s complex and productive enough, with enough thermodynamic “free energy”, there will be many means by which “life”** finds a way to garner resources and increase.  Some of these are generally useful and productive, the equivalent of green plants and earth worms and so on, creating or improving the resources that make the whole thing livable.

But when there are resources, and when there is a complex ecosystem (of any type) then predators (like the cows and horses and sheep that feed on the plants and then the other animals that feed on them) will evolve that prey ultimately on the primary producers, as well as parasites that just drain life from many levels of the system for their own benefit without providing anything that is useful for any other creatures.  There are also symbiotes of various kinds, instantiating various forms of mutual exchange to mutual benefit.

Of course, every living cell‒each of the tens of trillions in every human body and the bodies of all other eukaryotes on Earth‒is a symbiote, really.  The mitochondria (and chloroplasts when applicable) and probably other organelles were separate life forms that long ago took up and adapted to residence within other cells and have never left, to the benefit (in the “short term” at least) of all multicellular life forms.  And, of course, those life forms themselves are each massively symbiotic systems of countless cells.

But, unfortunately, even a life form that originated from a single ancestral cell‒and this applies not merely to each individual organism but to life on Earth as a whole‒can produce parasites that drain and ruin things for the rest.  Think of cancer, here, when applying the concept to “individual” organisms.

And even otherwise sensible and useful parts of an organism can experience a kind of mission creep that ends up making them detrimental to the whole.  Think of autoimmune diseases, or analogously, some of the judgmental and self-righteous excesses of the left that have caused their electability to deteriorate, allowing the already mutated cells on the right (which has seen its own healthy functions overwhelmed by its own cancers over time) to overgrow to general detriment.

Of course, cancers and severe autoimmune diseases and the like will end up destroying themselves, but they are prone to take the organism down in the process, and then all that will be left finally is a decaying corpse.  Am I speaking literally or metaphorically?  Yes, I am.

I know humans tend to think of themselves‒when they think of such things at all, or indeed, when they think at all‒as somehow different, separate, special, other than the various levels and stages and types of life and interactions.  They are not.  It’s just very difficult for them even to think to look at themselves dispassionately, as if from above and outside.

Of course, they are different from all the other things in reality‒as is everything else.  Everyone is “special”, which is just another way of saying no one is***.

If and when humans actually develop a civilization that goes beyond Earth and out into the greater cosmos to become significant at a galactic scale or higher, and in a durable way, I will recognize them as something special****.

Until then, nothing humans have done has really been much different qualitatively than ants making hills and termites making mounds and bees making hives.  Even the various space probes and messengers and, yes, astronauts are not much different than the scouts that bees “send out” to look for new sources of pollen and nectar.

Humans really could stand to develop a greater sense of humility.  I strongly suspect that they would do much better that way in the long run.

I don’t have high hopes for them, unfortunately.  But then, I don’t tend to have high hopes about much of anything.  That may be due to some degree of insight on my part, or it may be just the way my mind tends to work, or there may be other possibilities or combinations thereof.  In any case, I often find humans in general‒with noteworthy exceptions‒utterly exhausting and disgusting and pathetic.

But humans are not the only creatures that merit such reactions.  They are merely, for the moment, the most consequential ones to me.  Saddle me with an infestation of cockroaches or a swarm of mosquitoes or a massive overgrowth of mold and/or mildew, and I will be at least temporarily distracted from my (sad and disappointed) contempt for humans, and to some degree for everything else.  It will not, however, make that feeling go away.

The universe as a whole and in its parts is so noxious as to be barely, if at all, tolerable.  It doesn’t have to be that way.  But I suspect it always will be that way, at least unless and until the whole shmear evolves into a state of uniform, maximal entropy with no free energy and so no dynamic processes beyond those required fundamentally by quantum mechanics.

Oh, well.  I guess I can check out any time I like, and‒unlike the case with the Hotel California‒I can thereby leave.

I hope you all have a good day.

TTFN

*In the sense as used in the old curse, “May you live in interesting times.”  Or, as I have said many times in the past, one should try never to be interesting to one’s doctor.

**This can be literal, or it can be metaphorical‒businesses, nations, ideologies, etc., can be what we are considering when we say “life”, but many of the same patterns hold at every scale.

***Props to Dash from The Incredibles for this pithy insight.

****Or, well, if I am still alive then‒which seems unlikely‒I will so recognize them.

by

Tomorrow, and tomorrow, and tomorrow, blogs in this petty pace from day to day, to the last syllable of recorded time

Hello and good morning.  It’s Thursday, in case you didn’t already know.  Though, if you’re reading this on some day other than Thursday, then I guess it’s not Thursday for you.

You could think of it as us being on sort of parallel time streams—and indeed, we each carry our own “proper time” around with us, according to Relativity.  And while communication is possible between those timelines, it is communication in one direction only.  I can send messages to you, where and when you are now reading this, but you cannot send messages back to me.

Wait, wait, I hear you say*, you can communicate back to me in my parallel time, because you can comment on the post below (there’s only one person who does this with any regularity, but sure, it’s possible for you to comment, in principle).  So it’s not one-directional communication.

Ah, but that’s where I’m being esoterically precise here.  You cannot communicate back to me where and when I am now.  You can only communicate with some “future” point, something quite a bit down the line from where and when I am as I write this.  And I cannot then communicate with the you that is writing back to me, but only to some future state of you.

Okay, well, duh, you say**, that’s just how time works.

That only seems unremarkable to you because it’s all you’ve ever known, and you’re adapted to it—personally and evolutionarily.  But if you step back, so to speak, it can seem quite remarkable.

Special Relativity demonstrates that space and time are not separate but are intertwined, and space and time bleed into one another depending upon relative motion—indeed, within the event horizon of a black hole, it appears that space and time are flipped ninety degrees (as though along an axis at 45 degrees to those of space and time) so to speak, so that space becomes time, which is part of why you can never get out of the black hole—you cannot reverse time, but must move forward to its end at the singularity, if such a thing exists, which is probably not the case.

So, why does time work differently than space?  After all, If I live on a street parallel to yours, I can cross to your street by any of a number of cross-streets, cut through back yards, follow alleyways, etc., in more or less any direction, and I can return in a similar fashion.

Imagine, though, if it worked the following way.  I start at my address—let’s imagine it’s number 13*** for the moment—and want to go to your street.  But I can only go by routes that are at higher address numbers than my address.  And then, when I want to return to my street I have to go down (or would that be up?) the numbers on your street, to take a cross-street (or whatever) that’s even farther from my house.

So, say I crossed to your street right after number 17, where a cross-street exists.  And say the numbers on your street line up with those on my street, just for simplicity’s sake****.  Luckily, your house is at number 19 on your street, so I can reach it.  I could never go back to number 17 on your street, let alone number 13.

But when I want to leave your place, I can only head toward higher numbers, so I can’t go back to the cross street near 17.  I have to go down to, say, the street past number 23.  But even once I get to my street, I can’t go back to my house!  I must head in the direction of higher numbers.

I can only get back to my house if my street goes all the way around the world and comes back to my house from the other direction, and I suspect that it doesn’t do that.  I’m stuck farther down my own street, homeless now, because I cannot reach my address.  And it’s not as though you can take me in, because I cannot go back to your address, either, and if you leave your house to meet me, you will be in the same predicament in which I languish.

That’s sort of how time seems to work.  Unlike the three spatial dimensions, we cannot simply choose our direction, change our mind and our course, go back to where we came from or even just go around and around the block (which may or may not be a stupid thing to do—see yesterday’s post).  Why is time different?  The laws of physics appear to be locally time symmetric as they are space symmetric.  In other words, they work the same backwards and forwards.  But macroscopically, time is directional.

I’ve speculated a bit on this over at Iterations of Zero.  I’ll try to link to the pertinent blog post(s).  Some of that speculation compares the directionality of time that we all experience to the directionality of space that exists here on the surface of the Earth.

Wait, you say, what do you mean “the directionality of space”?  (You do love to interrupt, it seems.)  Well, think about it.  When you’re on the Earth, the directions forward/backward and left/right (or any other non-parallel axes you might choose along the surface, such as north/south and east/west) are freely navigable.  You can go in any direction or combination of directions along them, barring local obstacles.  But the same cannot be said for up/down.  It’s much harder to go up than to go left or forward.  And if you lose support beneath your feet, you will be unable to avoid going down.

Perhaps, as has been speculated by others with greater expertise than mine, the “Big Bang” provides or entails a local state that creates a local directionality to time, but far enough away from that “event”, time will become just as non-directional as any spatial dimension.

This is the way it works with the dimensions of 3D space:  when you’re far enough away from a local “event”, such as the surface of the Earth, the dimensions are all freely navigable.  But there’s not too much to do there, and it seems that life and complexity are likely to emerge only where these local gradients—whether in space or in time or both—exist, doing their part to provide the “free energy” which is required by things like life.

Anyway, that’s my random set of thoughts for this Thursday.  I hope you have a good day.  As for me, I continue to follow the local directionality of my metaphorical space; in other words, I continue to trend downward.  I do not perceive any other available direction for me.

TTFN

*Or I think I do.  I have terrible hearing and persistent tinnitus, so I might have been hearing the sound of rain on the roof or of wind in the trees or of otherworldly, eldritch creatures scratching at the fabric of reality, trying to break through the barriers between their realms and ours.  Probably not, though.

**You’re a bit rude, don’t you think?

***It’s not, unfortunately.

****Simplicity is one high-maintenance person.