I think you know the simulation hypothesis. Our universe could be a simulation created by… well, let’s call them “gods”.

But, if the simulation continue, we, humans, may reach the point where we could create a simulation of our own universe. In which, the simulated people would reach the point where they simulate their universe, etc…

So, as a corollary, it is not possible to simulate the entire universe, because this imply simulating an infinity of entire universe. It is only possible to simulate a simpler, smaller universe at each “layer”.

So my question, are we at the top of the stack, or at the bottom ? Which would imply a much bigger and much more complexe universe above us.