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Is your consciousness a quantum phenomenon? Is the universe one predetermined block? Neil deGrasse Tyson and cohosts Chuck Nice and Gary O’Reilly answer grab bag questions about quantum theory, the cosmological constant, and retrocausality with astrophysicist Charles Liu.NOTE: StarTalk+ Patrons can listen to this entire episode commercial-free.Thanks to our Patrons Jules, Kelton Falls, Danielhero 11, Zaubergarden, Danilo Vieira Battistini, Brian Lacroix, Charles Baker, Matthew Krug, Chris A, Sandra Leduc, Rodney Schneider, Sir Sucknoramus, Dominik Zwahlen, Malachi Vanderpuye, Zac, Will Johnson, John DeGrey, ClumsyVirtuose, Holly Sweet, Chuck Montana, Jeffrey Holt, Stephen, Extronox, Jon, Ben Grund, Jona Smith, Christopher Zalenski, Wile E Coyote, Stephen Patterson, Amber Johnson, Cameron Clark, D. L. Brown, Maitreya Save, Samuel, John Blankenship, BridgesNotBurned, Nicholas, Katie Hoen, Mometc, Henry, Rajeev Patel, Neufin, Philip Olafsen, Kiara Barbosa, Justin Lodge, Ayaku, Rodney Long, Feeneydactyl, Holman C