Fact-checking for this program leads down a puzzling path searching for a famous quote.
is a theoretical physicist and Professor Emeritus at the Institute for Advanced Study in Princeton. He has published many scientific papers and written many books, including Disturbing the Universe.
is a theoretical physicist and director of BEYOND: The Center for Fundamental Concepts in Science at Arizona State University. He has written widely about Einstein's understanding of time, including How to Build a Time Machine.