I’m writing this on my phone for the first time in quite a while, seated in the rear of an Uber, on the way to the office.  This was something of a whim‒the phone writing, I mean, not the Uber.  The Uber was a carefully considered choice, and it is relatively cheap because of the hour at which I’m taking it.  It’s not something I would do on a regular basis, at least not for long.  Maybe if I finally give up and decide to die in short order I might just burn a lot of money on Ubers.  I doubt it, though.

No, the whim is deciding to write on the phone, since I have some down time in the back seat.  I could use my laptop, but that feels slightly weirder or more uncomfortable to me, though I’m not sure why that’s the case.  I could also just wait until I got to the office to start, because I’m going to be very early.

The reason for going to the office by Uber is that I made the mistake of ordering an Amazon “Try Before You Buy” article of clothing‒a somewhat expensive one.  It did not fit right.  But then I learned that Amazon doesn’t do a pickup to return items like that; you need to drop them at a Whole Foods or a UPS store or similar.

That was not clear to me when I was using the option, or I wouldn’t have done it.  I have no straightforward way to get to any of the above locations, and even to use Uber to get to one would require going during working hours.  I had to arrange for a UPS pickup, at my expense, but I had to set it up to happen at the office, because I won’t be at the house during the day for ten more days (at least on days UPS does such pickups) and that’s past the pickup time window for the “Try Before You Buy” system.

So, here I am, bringing a cumbersome, and not too light, package to the office with me so that UPS can pick it up between 9 and 6.  I never want to do this sort of thing again.  It was foolish of me to try a rather expensive article of clothing anyway, but I guess it was sort of an attempt to cheer myself up with an indulgence.

That sure misfired, didn’t it?

Speaking of cheering oneself up with indulgence‒or with the inability to do so‒tomorrow is Thanksgiving for my fellow United Statesians.  We don’t call this evening “Thanksgiving Eve”, which feels like a shame to me, but certainly people do start celebrating the holiday, in a sense, quite early.  I think many people take the whole week off work.

I, on the other hand, am not really going to be doing anything to celebrate.  The closest I might come is walking to a gas station not too far from the house, where they tend to have pretty decent pre-made turkey sandwiches with mildly cranberry-associated topping.  It’s not very impressive, nor is it terribly satisfying.  I’d feel much better, I think, if I were able simply to go to sleep tonight and sleep through until Friday morning.  As it is, I probably won’t be able to sleep or rest any more than usual, and that’s even counting my plan to take some Benadryl tonight.

I’m almost at the office, so I’ll take a brief pause here and resume after I arrive.  You may not notice the gap.

Did you notice it?  I’m guessing you probably recognize that it happened, but only because I told you that it was happening.  Like the scenes in a movie that’s been filmed over months and months, or the paragraphs of a long novel like my forced two-parter Unanimity that was written and edited over the course of more than a year, the final product may end up relatively seamless despite a long and discontinuous origin.

I’ve occasionally imagined that it might be possible (in principle, anyway) for our reality to be a simulation in which each moment‒maybe each Planck time‒in every location in space‒perhaps each cubic Planck length‒is prepared individually, one by one, then subsequent and nearby ones are calculated based on the laws of physics, and each next place and time is then updated piece by piece, one infinitesimal space and one instant of time at a time, as it were*.

The simulator could take a trillion years to calculate even one second of the spacetime in the visible universe, probably far longer.  But it wouldn’t really matter, necessarily**, how long it took, provided there was enough memory available to keep everything stored.  From the outside, the process of one human life (and its past and future light cones) might take a googol years to calculate, but from the inside point of view, for the human being “simulated”, time would just progress normally.

It doesn’t matter to the people in a video, for instance, if their video is viewed at 2x speed or .25x speed; for them it all happens the same way no matter what.  It doesn’t matter to the characters in a Studio Ghibli movie that their individual movie cels each took hours to be painstakingly drawn and painted, or if a Pixar character took even longer to be computer generated.  Their “experience” would pass at one frame per frame, or 24 frames per experienced “second” for them (at traditional movie frame rates).

Even if each second of the person’s life took a trillion eons to simulate, it would still be experienced just as a second for that person.

A rather weird and possibly disquieting implication of this is that, if those simulating the person stopped doing it‒perhaps they got bored, or had a power cut, or suffered a natural disaster or catastrophe in their meta-level universe‒the simulation would just…stop.  It’s not that the people in the simulated universe would die in any conventional sense; certainly they would not die in the usual within-the-universe meaning of dying.  Nor would their universe “die” as if some cataclysm like a phase change in the vacuum energy occurred***.  It would just stop.

There would be no next moment, no next occurrence*****.  If someone were later to restart that simulation for whatever reason, even if it was ten to the thousand to the googol years later or more, the people within the simulation would experience no difference between the before pause and after pause moments than between any other two moments in their existence.

But if the simulation were stopped and never restarted, with perhaps all associated memory erased…well, again, the inhabitants would not experience it in any possible, conceivable sense, any more than a video game character experiences the moments when and after you reset the game or the power goes out.  If you are a simulated existence, and the simulation is permanently stopped, you will not so much die as cease to have any manner of existence whatsoever.

Have a happy Thanksgiving.

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*It’s interesting also to think of, for instance, two “people” starting to simulate such a universe from different points in space and time, and to wonder what would happen when they came together if their simulations did not mesh perfectly, like frost on a window-pane with multiple initial points of nucleation leading to a “fractured” pattern.  But that’s a different, if related, thought process.

**From the point of view of the “simulated” universe, anyway.  It’s hard to see anyone having the commitment or desire to bother actually carrying out such a laborious simulation; that would be quite a dreary task.

***This is a possible occurrence in an ordinary, physics-related sense.  If the “dark energy” is indeed the cosmological constant (called lambda, Λ, as in the ΛCDM model of cosmology) but is not at its lowest “vacuum state”, then it could spontaneously “tunnel” down to a lower, more stable set-point.  This would wipe out every particle in the current universe in a growing sphere, with its outer shell expanding at the speed of light.  Of course, that means that you could never, in principle, have any warning that it was happening, nor could you, even in principle, experience your destruction and that of everything else that exists.  This is not the same manner of cessation as what I discuss in the main body of the post‒it is very much a within-simulation event, not a meta-level one‒but it would still be just an instantaneous erasure of sorts, happening too fast to be experienced even in principle****.  There are many worse ways to die.  Indeed, almost all ways humans do die are much worse than this.

**** Presumably, quantum information would be conserved even in this catastrophe, whereas in a halted and erased simulation, that principle wouldn’t apply, at least within the simulation.  Whether it would apply to the process of simulating and then ceasing to do so would depend on the nature of the meta-level universe.

*****I suppose this is analogous to what will happen to everything in the universes of my stories Outlaw’s Mind and The Dark Fairy and the Desperado if I never finish those stories.