45:25
FloatHeadPhysics
We were wrong about how time works inside a black hole! (My mind is blown)
Mahesh Shenoy of FloatHeadPhysics spent months with one great book on relativity, and he comes out the other side with a single tool that dissolves every paradox people repeat about black holes. The tool is a spacetime map that keeps light rays at exactly 45 degrees everywhere, inside and out. He does not derive it from Einstein's field equations.