I've been watching a lot of PBS Space Time, and I don't understand what is meant by the word "information". I.E.: "information" is lost in a black hole, etc.
Is "information" real-world, actual, physical mass and particles? Is it a thing?
OR, is "information" a mathematical representation of said mass and particles? Like, in programming, Objects have Properties... Databases have columns set with data types and character lengths, and Files have metadata like, date created, modified by, etc.
If you go into a black hole, you're going to die, right?