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What Is Time Professor Sean Carroll

Sean Carrol
Sean Carrol

What is Time? Tackle one of the greatest problems in all of science—the nature of time itself—in "Mysteries of Modern Physics: Time," a groundbreaking course by Dr. Sean Carroll, one of the foremost researchers in this field. In this second video from the 24-video series, Professor Carroll approaches time from a philosophical perspective. “Presentism” holds that the past and future are not real; only the present moment is real. However, the laws of physics appear to support “eternalism”—the view that all of the moments in the history of the universe are equally real. Sean Carroll is a theoretical physicist at Caltech in Pasadena, California, where he researches theoretical aspects of cosmology, field theory and gravitation -- exploring the nature of fundamental physics by studying the structure and evolution of the universe. His book on cosmology and the arrow of time, From Eternity to Here: The Quest for the Ultimate Theory of Time, was published in 2010. He keeps a regular blog at Cosmic Variance.

What Is Time? | Professor Sean Carroll explains the theories of Presentism and Eternalism