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

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It's said that the clock is always ticking, but there's a chance that it isn't. The theory of “presentism“ states that the current moment is the only thing that's real, while “eternalism“ is the belief that all existence in time is equally real. Find out if the future is really out there and predictable—just don't tell us who wins the big game next year. This video is episode two from the series “Mysteries of Modern Physics: Time“, Presented by Sean Carroll Learn more about the physics of time at 00:00 Science and Philosophy Combine When Studying Time 2:30 Experiments Prove Continuity of Time 6:47 Time Is Somewhat Predictable 8:10 Why We Think of Time Differently 8:49 Our Perception of Time Leads to Spacetime 11:54 We Dissect Presentism vs Eternalism 15:43 Memories and Items From the Past Make it More Real 17:47 Galileo Discovers Pendulum Speeds Are Identical 25:00 Thought Experiment:

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