Carlo Rovelli and Brian Greene on Black Holes and White Holes

Progress in the last decade has established that black holes are real, but what about their time-reversed cousins, white holes? Renowned physicist and author Carlo Rovelli joins Brian Greene to explore insights into these speculative astrophysical chimera. This program is included in a 3-part series that explores the wondrous implications of gravity pushed to the extreme, tackling dark energy, black holes and white holes. Renowned researchers join Brian Greene to discuss a range of insights–from confirmed to highly speculative–that extend Einstein’s vision of reality and advance our understanding of fundamental physical laws. This program is part of the Big Ideas series, supported by the John Templeton Foundation. Participants: Carlo Rovelli Moderator: Brian Greene WSF Landing Page: https://www.worldsciencefestival.com/programs/beyond-einstein-gravitational-geysers/ 00:00 - What is a White Hole? 02:00 - Carlo Rovelli's introduction 02:56 - Time reversal invariant and white holes 05:03 - 1930's NY times headline "New Radio Waves Traced To Center of the Milky Way" 08:02 - Robert Oppenheimer and white holes 16:02 - The scales of the universe 23:00 - That sounds like dark matter 25:20 - The best way to view a black hole 27:34 - Is it more meta physics than physics? 29:47 - White Holes as Dark Matter Part 1 | Gravitational Rainbows: - https://youtu.be/P8pC_yehPH0 Part 2 | Gravitational Echoes - https://youtu.be/srVTqRdsAXg - SUBSCRIBE to our YouTube Channel and "ring the bell" for all the latest videos from WSF - VISIT our Website: http://www.worldsciencefestival.com - LIKE us on Facebook: https://www.facebook.com/worldsciencefestival - FOLLOW us on Twitter: https://twitter.com/WorldSciFest #worldsciencefestival #blackhole #briangreene #CarloRovelli #blackhole #physics #whitehole