Time Reversal Symmetry
Sean explains how time reversal symmetry works for classical black holes, drawing parallels with melting ice cubes. He also addresses recent audio quality issues, attributing them to various factors like echoey environments and guest microphone choices.In this clip
From this podcast

Mindscape Podcast
Mindscape AMA, Sean Carroll | September 2021
Related Questions
What is the concept of the event horizon in relation to ideas in the episode Sean Carroll: General Relativity, Quantum Mechanics, Black Holes & Aliens | Lex Fridman Podcast #428 and the clip Black Hole Mysteries?
What is the concept of the event horizon in relation to ideas in the episode Sean Carroll: General Relativity, Quantum Mechanics, Black Holes & Aliens | Lex Fridman Podcast #428 and the clip Black Hole Mysteries?