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. To find out more about this course, and watch the rest of it for FREE when you start a trial of The Great Courses Plus, go to www.TheGreatCoursesPlus.com/mysteries-of-modern-physics-time?utm_source=US_OnlineVideo&utm_medium=SocialMediaEditorialYouTube&utm_campaign=164058 Please like/comment/share! And don't forget to subscribe to our channel - new videos are being added all the time! www.youtube.com/subscription_center?add_user=TheGreatCourses Follow us! --Twitter: twitter.com/thegreatcourses --Facebook: www.facebook.com/TheGreatCourses --Instagram: www.instagram.com/thegreatcourses/ --Blog: www.thegreatcoursesdaily.com/ --LinkedIn: www.linkedin.com/company/the-great-courses-by-the-teaching-company