Solving the Puzzle of Black Holes: Hawking, Entropy, and a Theory of Everything

With the power of math, scientists are going even further, using equations to “look” inside black holes, peering at the central singularity where general relativity and quantum mechanics collide.

PARTICIPANTS: Cumrun Vafa

MODERATOR: Brian Greene

MORE INFO ABOUT THE PROGRAM AND PARTICIPANTS: https://www.worldsciencefestival.com/programs/darkness-visible-shedding-new-light-black-holes/

This program is part of the BIG IDEAS SERIES, made possible with support from the JOHN TEMPLETON FOUNDATION.

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TOPICS:

0:01 - Explanation of the concept of entropy
5:03 - Cumrun Vafa intro
6:06 - The puzzle of entropy in black holes
10:25 - Measuring black hole entropy
13:08 - Problems with Hawking's argument
15:20 - Explanation of string theory and how it describes a black hole
22:05 - The puzzle of Hawking radiation
28:03 - What happens at the center of a black hole?

This program was recorded live at the 2018 World Science Festival and has been edited and condensed for YouTube.

Watch the full unedited program here: https://youtu.be/3JE_KMfuEWk