Through the Wormhole (2010)

S5E10 When Did Time Begin?

As we navigate through the stream of time, we ponder its origin. Is there a beginning to this flow? Some theorists argue that time and space are inseparable, with the Big Bang marking the start of time's progression. Others suggest the universe existed for nearly half a million "years" before light emerged and time commenced. Additionally, some propose that time predates our universe itself. What if time is merely a construct? Exciting new experiments might provide clarity, including one that allows us to breach time itself and another that could develop a device functioning beyond temporal limits!