> Reductio ad absurdum - the simulation could be of what we think we know, rather than actually what we observe. Given we're talking about a universe-scale sim

> Reductio ad absurdum - the simulation could be of what we think we know, rather than actually what we observe. Given we're talking about a universe-scale simulation, I don't think that's actually absurd. We wouldn't be able to do that, no, but we wouldn't be able to do any of this. It's obviously possible in principle. No, reductio ad absurdum: The simulation could be of you. Just you. All other people are simulated only to whatever degree is needed when they interact with you; people who don't, are only simulated as trendlines.