No signal can escape from beyond this line. No light, no radio wave, no quantum of information. Whatever crosses the event horizon stays there — forever.
This creates one of the most fascinating paradoxes in modern physics. If nothing can escape a black hole — not even information — what happens to the laws of the universe? Physics demands that information can't be destroyed. But black holes seem to do exactly that.
This is called the black hole information paradox. And the greatest minds alive