Why would it matter though? I read a analogy somewhere (in a Carl Sagan's book, I think) about how a goldfish in a convex fish bowl might create a set of rules for motion of objects that will work fine in predicting motion of objects as seen from inside the fish bowl but will be totally different from the true laws that people outside that bowl will formulate. As long as the rules keep working for the fish, why would the fish care if they are wrong? More importantly, how would you know that you are living in the outermost layer of reality? (not sure what the technical term should be)
As Vladimir Bartol famously opined: "Nothing is true."
As Vladimir Bartol famously opined: "Nothing is true."