Anti-de Sitter space
Concept
A type of negatively curved spacetime, which can be thought of as a black hole 'turned into a whole universe' in some theoretical contexts. It is one of the three simplest spacetimes.
Mentioned in 2 videos
Videos Mentioning Anti-de Sitter space

Leonard Susskind: Quantum Mechanics, String Theory and Black Holes | Lex Fridman Podcast #41
Lex Fridman
A type of spacetime geometry with negative curvature, which is mathematically well-understood and theoretically easier to simulate on a computer compared to our universe's geometry.

Andrew Strominger: Black Holes, Quantum Gravity, and Theoretical Physics | Lex Fridman Podcast #359
Lex Fridman
A type of negatively curved spacetime, which can be thought of as a black hole 'turned into a whole universe' in some theoretical contexts. It is one of the three simplest spacetimes.