Why the Black Hole Information Paradox Is Such a Problem

Posted by samzenpus on Sunday September 6, 2015 @02:37AM from the things-we-know-that-we-don't-know dept.

New submitter TheAlexKnapp writes: Here's a really nice explanation of the Black Hole Information Paradox for those who are unfamiliar with it. The article lays out the basic gist — that right now if you take two black holes, one made from the collapse of one type of star, and the second from the collapse of a different type, you can't tell which is which. Ethan Siegel points out that Hawking's big announcement was really just a small step heading towards a possible solution, and highlights that the paradox highlights the incompleteness of our understanding of some types of physics.

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Re: I RTFA, but... by Anonymous Coward · 2015-09-06 03:29 · Score: 4, Informative

No, it is more subtle than that. Conservation of information is closely tied to time reversal symmetry and energy conservation as a result of Noether's theorem. But in general it is not tied to casaulity.