Summary
The nature of time is a complex topic that continues to intrigue scientists, particularly in the realm of theoretical physics. Sean Carroll, a physicist at Caltech, explores whether time is a fundamental aspect of reality or an emergent phenomenon. He draws parallels between time and the properties of air, which, while appearing fundamental at a macroscopic level, are actually derived from the behavior of atoms and molecules at a microscopic level.
Carroll discusses the implications of quantum mechanics, suggesting that the universe's state may not evolve in a conventional manner over time. He introduces the concept of superposition, where multiple potential states of the universe can coexist without a definitive timeline. This raises the possibility that time itself could be an emergent property rather than a fundamental one, leaving the scientific community with the challenge of determining which perspective is accurate. Further theoretical and experimental work is needed to unravel this fundamental question about the nature of time.
Show Notes
We caught up with Prof Sean Carroll at a recent astronomy conference and got his thoughts about time. Time may seem like a fundamental property of the Universe, but actually there's nothing in quantum theory which requires this to be so. Prof Carroll explains how time being merely an illusion, an emergent property rather than a fundamental one, is actually compatible with our best understanding of nature. This is one of two videos we shot with Sean so look out for the second video later in the year!::More about this Video::► Sean Carroll: "From Eternity to Here" book available on Amazon: https://www.amazon.com/Eternity-Here-Quest-Ultimate-Theory/dp/0452296544► Sean Carroll's blog "Preposterous Universe" at https://www.preposterousuniverse.com/blog/► 229th Meeting of the American Astronomical Society: https://aas.org/meetings/aas229► Background music by Hans Zimmer, Interstellar OST::Playlists For Channel::Latest Cool Worlds Videos ► http://bit.ly/NewCoolWorldsCool Worlds Research ► http://bit.ly/CoolWorldsResearchGuest Videos ► http://bit.ly/CoolWorldsGuestsQ&A Videos ► http://bit.ly/CoolWorldsQAScience of TV/Film ► http://bit.ly/ScienceMovies::Follow us::SUBSCRIBE to the channel http://bit.ly/CoolWorldsSubscribeCool Worlds Lab http://coolworlds.astro.columbia.eduTwitter https://twitter.com/david_kippingInstagram https://www.instagram.com/cool.worldsTHANKS FOR WATCHING!! Learn more about your ad choices. Visit megaphone.fm/adchoices
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