Unknowable? Maybe you can't be certain but there are indirect reasons to think it is, by noticing that it appears flat with no sign of a boundary. As for multiple definitions with different answers, can you specify two definitions of 'universe' that have different answers? I of course do not only mean the observable universe. I don't see how the question is undefined.
As for multiple definitions with different answers, can you specify two definitions of 'universe' that have different answers? I of course do not only mean the observable universe.
A 'standard' definition of "universe" is "all existing matter and space". If we allow for the many-worlds hypothesis, then the universe is infinitely large even if a Laplacian Demon could know the entirety of the universe at a given state (i.e.; simultaneously finite and infinite). If we operate under a definition of "universe" whereby the MWI cre...
Often, there are questions you want to know the answers to. You want other people's opinions, because knowing the answer isn't worth the time you'd have to spend to find it, or you're unsure whether your answer is right.
LW seems like a good place to ask these questions because the people here are pretty rational. So, in this thread: You post a top-level comment with some question. Other people reply to your comment with their answers. You upvote answers that you agree with and questions whose answers you'd like to know.
A few (mostly obvious) guidelines:
For questions:
For answers:
This thread is primarily for getting the hivemind's opinions on things, not for debating probabilities of propositions. Debating is also okay, though, especially since it will help question-posters to make up their minds.
Don't be too squeamish about breaking the question-answer format.
This is a followup to my comment in the open thread.