Comment Re:What a bizarre fad ... (Score 2) 205
I agree this is more like 'religion' than science, as it is not falsifiable, even if this 'proof' purports to do that. It's kind of a pointless exercise of no practical use, however...
the universe that simulation is running in would need to be infinitely more complex and large than the one we're in. That's non-sensical in itself
But it isn't non-sensical. Because we would have no perspective to know about 'complexity' in absolute terms. We think quantum stuff is small and the speed of light is fast, but that's just because of what we possibly observe. If hypothetically a 3d engine were self aware, they may conclude that triangles are the impossibly smallest things, and some game engine limitations dictated some absolute limits to reality that the outside world sees as a significant simplification.
within a given universe that contains it.
That's the thing, by definition in the hypothetical the computation device is *not* within the given universe that contains it. Again, if you look at some of these things like minecraft where they build logic devices, they are, in the scale of the target universe, impossibly huge because that's what the in-engine physics allow. So again, such a self-aware hypothetical would conclude that even a simple calculator has to be the size of a large building and mock the concept of a handheld device being able to simulate everything they observe despite us knowing that such a game engine is in fact on the easier side of things a handheld computer can do.
so slow as to be pointless.
Which comes to another point, we have no absolute concept of time. If it takes the hypothetical higher order universe an hour to simulate a second of our universe, we'd be none the wiser. We do these sorts of things in simulation all the time, though we don't run it for long.
Also there's fact that we don't have any way of really *knowing* everything we think we remember and observe is substantially done at all. In Half Life in-universe they would perceive the phenomenon as some maddeningly complex physics stuff, because that's what the game engine presents. However we know that it's just "special effects". We think we have memory of many years and history of centuries, but a lot of games present themselves the same way, despite never actually *running* that material, just preloading the memory/history into the scenario. Any individual can only speak to what they see in that instant of time and can't know that there's really anything substantial directly behind them let alone light years away.
Trying to disprove is pretty much a waste because the goalposts can move freely.