Brian Greene is a theoretical physicist.Please support this podcast by checking out our sponsors:- The Prisoner Wine Company:https://theprisonerwine.com/lex to get 20% off & free shipping - Blinkist:https://blinkist.com/lex and use code LEX to get 25% off premium - LMNT:https://drinkLMNT.com/lex to get free sample pack - BetterHelp:https://betterhelp.com/lex to get 10% off - NI:https://www....