Physics: Are we forever trapped in the arrow of time? | Sabine Hossenfelder

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Why does time move forward but not backward? Physicist Sabine Hossenfelder explains. Why does time move in only one direction? This still-unsolved question was posed in 1927 by the British astrophysicist Arthur Eddington, and the concept came to be known as the arrow of time. As theoretical physicist @SabineHossenfelder explains, there's a longstanding mystery in the foundations of physics: If we look at the laws for microscopic constituents, like elementary particles, they work the same way forward in time as they do backward in time. But the same does not hold true on macroscopic scales. In this Big Think video, Hossenfelder dives into this mystery and explores how it has captivated the minds of so many scientists and science fiction writers. Go Deeper with Big Think: ►Become a Big Think Member Get exclusive access to full interviews, early access to new releases, Big Think merch and more ►Get Big Think+ for Business Guide, inspire and accelerate leaders at all levels of your company with the biggest minds in business ---------------------------------------------------------------------------------------------------------------------------------------------------------- Chapters: 0:00 The arrow of time 1:14 Why doesn’t anyone get younger? 2:39 Can we stop human aging with entropy control? 4:01 Is ‘maximum entropy’ how the universe will end? Listen To This Next: Adam Grant's #1 phrase to unlock potential The science of super longevity Beat anxiety with the most addictive experience on Earth ------------------------------------------------------------------------------------------------------------------------------------------------------- About Sabine Hossenfelder: Sabine Hossenfelder is a physicist, author, and creator of "Science Without the Gobbledygook". She currently works at the Munich Center for Mathematical Philosophy in Germany. ---------------------------------------------------------------------------------------------------------------------------------------------------------- Go Deeper with Big Think: ►Become a Big Think Member Get exclusive access to full interviews, early access to new releases, Big Think merch and more. ►Get Big Think+ for Business Guide, inspire and accelerate leaders at all levels of your company with the biggest minds in business. -------------------------------------------------------------------------------------------------------------------------------------------------------- Get Smarter, Faster.... With Episodes From The Worlds Biggest Thinkers. Follow The Podcast And Turn On The Notifications Share This Episode If You Found It Valuable Leave A 5 Star Review Learn more about your ad choices. Visit megaphone.fm/adchoices