What Is the Nature of Time?

This podcast episode explores the concept of time from various perspectives, including the personal experience of time, the physics of time travel, the arrows of time, the flow of time, the measurement of time in scientific advancements, the impact of Einstein's theories of relativity on our understanding of time, and the practical applications of relativity in GPS systems. It also delves into the axion particle, a hypothetical particle that could explain the existence of dark matter. Through these discussions, the episode highlights the mysteries and complexities surrounding the nature of time and its profound implications for our understanding of the universe.