I agree that it would probably not resemble our universe. I would think it has to be a universe that's capable of simulating our universe without consuming all of the host universe's resources as it would need at least some sort of species that would want to simulate our universe. At least initially.
I'm not sure what you (and other people) really mean when you say our universe is simulated.
- Do you mean that the entire universe is simulated down to the planck level?
- Do you think there's some sort of optimization going on?
- Do you think it's done by a species that evolved to become curious to see what would happen if you simulate the universe (like us)?
I can say that our universe is simulated too, but I have no idea if this simulation was made by someone or if it "just is".
But if you believe the universe is a simulation in some host universe, then it must be possible to have a universe that "just is" / or is Turing complete as you put it.
> I mean that such a universe could be so different from ours that the idea of 'species' may not even be sensible.
Alright. I've heard people say they think our universe is being simulated because that's what we would do. For those who think that, the host universe is at least somewhat similar to us.
> Unspecified. Perhaps gross approximations are used unless an attempt is made to observe (internally or externally) more detail.
But if gross approximations are true, that reveals information about the host doesn't it? If they resort to approximations because they don't have enough resources, that tells us they must really want to do this for some reason. Did they want to create our simulation for fun? Out of desperation? Are we made for research purposes? All those questions point to something human-like in my opinion, and thus "species".
I'm not sure what you (and other people) really mean when you say our universe is simulated.
- Do you mean that the entire universe is simulated down to the planck level? - Do you think there's some sort of optimization going on? - Do you think it's done by a species that evolved to become curious to see what would happen if you simulate the universe (like us)?
I can say that our universe is simulated too, but I have no idea if this simulation was made by someone or if it "just is".
But if you believe the universe is a simulation in some host universe, then it must be possible to have a universe that "just is" / or is Turing complete as you put it.