What is Black Hole Information Paradox?

A black hole is like a cosmic vacuum cleaner that swallows everything it touches, even light! But there's a puzzle about what happens to the stuff it swallows.

Imagine you have a toy box full of different toys, and you throw all your toys into a black hole. The black hole eats them up, and from outside, you can’t see any of the toys anymore. Now, if the black hole later disappears, like it eats itself up, what happens to the toys? Are they gone forever?

That’s the black hole information paradox.

A black hole doesn't just eat things; it sometimes spits them out in a messy way. But here's the twist: when it spits them out, it might not remember which toy was which, or even how many toys were inside!

Scientists thought that all the information about the toys (like their colors and shapes) should still be there somehow, but if the black hole doesn’t remember, where did the information go?

It’s like throwing a bunch of Legos into a blender, you get a messy pile of Lego pieces, but you can't tell which piece came from where. That's the puzzle scientists are trying to solve!