Is it possible to prove that the universe either is or isn't a simulation?
133194
Can we prove reality?
12449
How to formulate continuum hypothesis without the axiom of choice?
110232
Can an observed event in fact be of zero probability?
29426
Is there a proof of existence of time?
37742
What combinations of realism, non-locality, and contextuality are ruled out in quantum theory?
24003
Is the universe fundamentally deterministic?
148726
Are we living in a false vacuum? Is there any way to tell?
5612
How to prove that we are living in a 3+1D world?
80712
Are we living in a simulation? The evidence
63748
What does it mean that the universe is "infinite"?
10553
Does the universe have an edge/boundary/barrier? If yes, what is at the edge?
79727
Direct proof of non-flatness
63414
What are the pieces of evidence that universe is expanding?
143318
Is it possible to accept the alternative hypothesis?
116135
A paradox related to computable reals?
23359
Does the Planck scale imply that spacetime is discrete?
73371
How would you know if nonobservable entities exist?