this post was submitted on 04 Mar 2024
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It's crazy Plato was talking about this back in the day, and in the last 2,000+ years of science and technology, we kind of just found more stuff that it's not only possible, but statistically likely that even if this isn't, we'll have the tech eventually.
Not in any of our lifetimes, but in another couple thousand years at least.
Well, we can't simulate our universe inside of our universe (it'd take more matter and energy than our universe has, since it's trying to calculate our universe). We will be able to (and can) simulate simpler systems though. Potentially our universe is a simplified version in an even larger version though, and that could also be another simulation. Things like the Planck length and time make this seem more reasonable to me, since an expected simulation would have minimum sized units where it stops storing extra data.
We should still all behave like it isn't a simulation, since nothing changes if we do or don't. Still, it is interesting to consider.
Planck scale units aren't known or typically assumed to be minimum units. They're just the units that come out of combining some fundamental constants and are thought to represent a scale where the effects of quantum gravity have too much effect to be ignored. They just represent a theoretical limit to the validity of our current models.
Human knowledge will continue to push these boundaries as long as humans still exist, but it's arrogant to think our current human limitation is a universal limitation.
Yeah, I oversimplified it but it's the scale where the data doesn't matter anymore. It isn't a minimum distance or time, but it is a minimum distance or time that actually matters. It is in no way evidence of a simulation, but a simulation could be expected to have things like that, because infinite precision would require infinite data.