Challenging Conventional Cosmology

Neil Turok joins Brian Greene to describe his new ideas for curing the big bang singularity and providing a natural dark matter candidate, all while avoiding the conventional paradigm of inflationary cosmology. This program is part of the Big Ideas series, supported by the John Templeton Foundation. Participant: Neil Turok Moderator: Brian Greene 00:00 - Introduction 2:00 - Neil Turok’s background 8:00 - How does herd mentality and tenure affect the promotion of new ideas in physics? 10:40 - Turok’s Thoughts on Inflation 13:30 - Where inflation falls short 17:30 - Stephen Hawking’s no-boundary proposal 22:30 - Hawking’s thoughts on Gravitational waves 24:00 - Turok’s beliefs on testing and adjusting scientific models 30:00 - Should we explore ideas outside of the standard model? 36:08 - How critical should we be of inflation? 39:00 - Are there Alternatives to inflation? 45:00 - How to resolve the big bang singularity 49:18 - The Mirror hypothesis 1:05:30 - How to reconcile entropy in the Mirror hypothesis 1:12:30 - Is there an explanation for why a black hole was not created during the Big Bang? 1:22:20 - Estimated value of the dark energy cosmological constant 1:30:15 - Can gravitational waves and an elegant version of inflation coexist? 1:49:00 - Brian’s summary of the The Mirror Hypothesis 1:58:00 - Final Thoughts 1:59:15 - Credits VISIT our Website: http://www.worldsciencefestival.com FOLLOW us on Social Media: Facebook: / worldsciencefestival Twitter: / worldscifest Instagram: https://www.instagram.com/worldscifest/ TikTok: https://www.tiktok.com/@worldscifest LinkedIn: https://www.linkedin.com/company/world-science-festival #worldsciencefestival #briangreene #cosmology #astrophysics