I forget whether it was in a thread about black holes on this forum, or in another book I was reading, there was a statement made that information about material falling into a black hole can never be destroyed.
Is this just an assumption about how the Universe works, or an actual law?
Could it be possible to explain (in "layman" terms) why this is the case if it's true?
It's likely I'm just misunderstanding what's meant by information, but doesn't entropy destroy information and a black hole is like a region of infinite entropy?