I just saw this post today. My main focus was taking somewhat of a Descartes method to deduce what we can and can't know about the plane of existence we live in and if we can derive if there are outside hierarchical structures above this one or not.

From the post, my conclusion was that the evidence overwhelmingly points towards an upper hierarchical layer or "wrapper" existing. Whether there is only one layer or infinite ones above this one is entirely unknowable due to the very nature of being an observer in an 'inferior' hierarchy.

As for attempting to prove many worlds theory and things like that, I find it interesting entirely from a science fiction perspective, but my brain (so far) is entirely unable to look at any of those ideas and say "that looks logical to me".

When people say things like "infinite realities", it seems like they're implying there would be a parallel universe where stars are created by the accretion of large amounts of orange cheetos. And if that doesn't happen, it's not exactly infinite realities, is it?

It was a dumb example, but I guess you get my point. Without infinite realities, the universe seems like a very finely tuned machine in a lot of variables and circumstances, but once you drag infinite realities into it, everything becomes pointless. There is no longer any reason to try and understand something; every possible combination exists just because it has to exist. That would turn the universe from a seemingly efficient and logical machine to completely inefficient and wasteful.

That's looking at things from an evolutionary perspective where things are constantly trying to streamline their efficiency. A process where things always run at full blast with zero regard to overhead is counterintuitive to all other known processes.

Of course, then you could imagine things like the "observer effect" in quantum mechanics to mirror efficiency gains in computer graphics like polygon culling (not rendering polygons that aren't in line of sight), so the universe would be attempting to conserve overhead in that regard.