Explore the fascinating concepts of presentism and eternalism in this thought-provoking 30-minute video lecture from the series "Mysteries of Modern Physics: Time". Delve into the nature of time as Professor Sean Carroll combines scientific experiments and philosophical inquiries to challenge our understanding of reality. Discover how the continuity of time has been proven experimentally, examine the predictability of time, and understand why our perception of time leads to the concept of spacetime. Analyze the debate between presentism and eternalism, considering how memories and artifacts from the past influence our view of reality. Learn about Galileo's groundbreaking discovery of pendulum motion and engage in a captivating thought experiment about time stopping. Gain insights into how time connects us with the external world and ponder the implications of different theories about the nature of existence in time.