Gravity and the universe | Sabine Hossenfelder, Erik Verlinde, Priyamvada Natarajan [FULL DEBATE]
3,615Sabine Hossenfelder, Erik Verlinde and Priyamvada Natarajan discuss inconsistencies in our current theory of gravity. Is the fault with Einstein's theory of general relativity, or with our understanding of quantum mechanics?
Watch the full debate at https://iai.tv/video/gravity-and-the-universe?utm_source=YouTube&utm_medium=description
00:00 Introduction
01:58 The problem with our theory of gravity: the quantum field theory and Einstein's theory of general relativity are mathematically incompatible
05:28 First pitch - Our theory of gravity lacks proper understanding of what quantisation is
05:51 Second pitch - We have to rethink gravity from a microscopic perspective
08:29 Third pitch - Data will show us the way
11:31 Theme 1: Where does the fault in our theory of gravity lie?
21:56 Theme 2: Do we need an entirely different account of gravity?
39:12 Theme 3: Should we accept that a single holistic account of the universe is impossible?
We all know the story of Newton framing his theory of gravity as a result of watching an apple fall from a tree. But 350 years on we still don't understand this seemingly simple force. Current theories cannot apply both at the small scale of atomic particles and at the giant scale of galaxies, on the scale of quantum mechanics and on the scale of general relativity. Without a solution the mystery of gravity threatens to undermine any overall account of the universe.
Do we need an entirely different account of gravity, or perhaps remove gravity from our explanations altogether? Or should we just accept that a single holistic account of the universe is not possible and see our theories as limited to a given frame and reference?
#gravity #generalrelativity #quantummechanics
Join celebrated theoretical physicist, Erik Verlinde, leading astrophysicist, Priya Natarajan, and famous physicist-YouTuber, Sabine Hossenfelder, as they take on the problems surrounding our conceptions of gravity today. Hosted by Bjørn Ekeberg.
The Institute of Art and Ideas features videos and articles from cutting edge thinkers discussing the ideas that are shaping the world, from metaphysics to string theory, technology to democracy, aesthetics to genetics. Subscribe today! https://iai.tv/subscribe?utm_source=YouTube&utm_medium=description&utm_campaign=gravity-and-the-universe
For debates and talks: https://iai.tv
For articles: https://iai.tv/articles
For courses: https://iai.tv/iai-academy/courses