Quantum Gravity and the Hardest Problem in Physics | Space Time
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Quantum Gravity and the Hardest Problem in Physics | Space Time

C1AdvancedOctober 31, 202620 min
  • Science

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/DonateSPACE Uploaded 20-09-18 Between them, general relativity and quantum mechanics seem to describe all of observable reality. You can further support us on Patreon at https://www.patreon.com/pbsspacetime Get your own Space Time t­-shirt at http://bit.ly/1QlzoBi Tweet at us! @pbsspacetime Facebook: facebook.com/pbsspacetime Email us! pbsspacetime [at] gmail [dot] com Comment on Reddit: http://www.reddit.com/r/pbsspacetime <...

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reality, and yet they can't be simultaneously true.

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Between them, general relativity and quantum mechanics seem to describe all of observable reality, and yet they can't be simultaneously true. They must be united in a deeper yet undiscovered theory. After a century of work by the greatest minds in all of physics, why does this union still

0:23

elude us? The first few decades of the 20th century was a time of miracles for physics. First, Einstein's relativity utterly

0:36

changed the way we think about space, time, motion, and gravity. Then the quantum revolution of the 20s and 30s overturned all of our intuitions about the subatomic world.

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