I can’t reply to your last reply. I agree, in fact I said those regions can be still causally connected to us, not that they are.
It gets complicated because the concept of 'now' is a local property and because those objects aren't moving away ftl, space is expanding.
You are assuming that the Principle of locality is true and proven. This is far from being the case from my understanding.
Ho, I love this hint. However even taking for granted that no faster than light travel is indeed an absolute rule of the universe, that doesn't exclude wormhole, or entangled particles.
https://scitechdaily.com/faster-than-the-speed-of-light-info...
The speed of causality or I information is the limit that is the speed of light.
Even in the case of entanglement, useful information is not ftl, If I write true on one piece of paper and false on another and randomly seed them to Sue and Bob, Sue instantly knows what Bob has as soon as she opens hers. While we teach QM similar to how it was discovered, there are less mystical interpretations that are still valid. Viewing wave function collapse as updating priors vs observer effects works but is pretty boring.
While wormholes are a prediction of the theory, we don't know if the map matches the territory yet. But it is a reason to look for them. But if we do find them it is likely that no useful information will survive the transit through them.
Kerr's rebuke of Hawkings assumption that black hole singularities are anything more than a guess from a very narrow interpretation of probably unrealistic, non rotating, non charged black holes is probably a useful read.
The map simply isn't the territory, but that doesn't mean we shouldn't see how good that map is or look for a better one.
Another thing that came to mind when reading the part about how "black holes have too high a density of events inside of them to do any more computation" is Chaitin's incompleteness theorem: if I understand it correctly, that basically says that for any formal axiomatic system there is a constant c beyond which it's impossible to prove in the formal system that the Kolmogorov complexity of a string is greater than c. I get the same kind of vibe with that and the thought of the ruliad not being able to progressively simulate further states in a black hole.