Questions about the nature of time are some of the most enduring. Yet despite our ever-deepening understanding of the physical universe, we have yet to reach a consensus about the meaning of time: does it flow like a river, carrying us along, or does it flow past us? Can it be stretched and squeezed, or even reversed? And why does it point towards the future and not to the past?
Broadcaster and professor of physics Jim Al-Khalili answers some of the biggest questions about the nature of time and time's arrow. It's a story that will forever change the way you think about the passage of time and your place within it.
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