What Would It Take to Overthrow Lambda-CDM? | Saul Perlmutter

What would it take to overturn modern cosmology? Saul Perlmutter examines some of the most popular alternatives to the standard cosmological model—from tired light and varying-speed-of-light theories to cyclic universes and modified gravity—and explains how scientists decide which ideas deserve serious consideration. 0:00 Challenges to the Standard Model 3:08 How Cosmologists Test Radical Theories 7:41 Cyclic Universes and Alternative Cosmologies 10:51 Can the Laws of Physics Change? 14:05 Does the Universe Need a Beginning? Saul Perlmutter is an American astrophysicist and Professor of Physics at the University of California, Berkeley. He was awarded the 2011 Nobel Prize in Physics for his groundbreaking discovery that the expansion of the universe is accelerating. His pioneering work has transformed our understanding of cosmology, including the study of dark energy and the evolution of the universe. More from Saul Perlmutter on Closer To Truth: Closer To Truth: The Podcast:    • Closer To Truth: The Podcast   Closer To Truth contributors: https://closertotruth.com/contributor... Subscribe to Closer To Truth:    / @closertotruthtv   Join the Community: Membership (5,000+ videos): https://closertotruth.com/register/ Audio Podcast: https://closertotruth.podbean.com Support the Show: https://closertotruth.com/donate/ Official Merchandise: https://www.bonfire.com/store/closert... Follow Us: Facebook:   / closertotruthtv   Instagram:   / closertotruth   X: https://x.com/CloserToTruth Closer To Truth, created and hosted by Robert Lawrence Kuhn, presents the world's greatest thinkers exploring humanity's deepest questions. Discover fundamental issues of existence and sentience. Engage new and diverse ways of thinking. Appreciate intense debates. Share your own opinions. Seek your own answers. #CloserToTruth #Cosmos #SaulPerlmutter #BigBang #DarkEnergy