Whatever the speed at which it appears to flow, time always passes. Since even before Homer wrote the Odyssey, humans have witnessed and documented the passing of time. But what does it mean? The way we experience time seems to depend mainly on mood. It feels like it's dragging on if you're bored, and if you're excited, it flies. Philosophy researcher Michael Marder explores this phenomenon as he explains how you can get into a temporal mindset and discover what it means to be a passenger of time.