Sean Carroll: Quantum Mechanics and the Many-Worlds Interpretation

Sean Carroll is a theoretical physicist at Caltech and Santa Fe
Institute specializing in quantum mechanics, arrow of time,
cosmology, and gravitation. He is the author of Something Deeply
Hidden and several popular books and he is the host of a great
podcast called Mindscape. This is the second time Sean has been on
the podcast. You can watch the first time on YouTube or listen to
the first time on its episode page. This conversation is part of
the Artificial Intelligence podcast. If you would like to get
more information about this podcast go to https://lexfridman.com/ai
or connect with @lexfridman on Twitter, LinkedIn, Facebook, Medium,
or YouTube where you can watch the video versions of these
conversations. If you enjoy the podcast, please rate it 5 stars on
Apple Podcasts or support it on Patreon. Here's the outline with
timestamps for this episode (on some players you can click on the
timestamp to jump to that point in the episode): 00:00 -
Introduction 01:23 - Capacity of human mind to understand physics
10:49 - Perception vs reality 12:29 - Conservation of momentum
17:20 - Difference between math and physics 20:10 - Why is our
world so compressable 22:53 - What would Newton think of quantum
mechanics 25:44 - What is quantum mechanics? 27:54 - What is an
atom? 30:34 - What is the wave function? 32:30 - What is quantum
entanglement? 35:19 - What is Hilbert space? 37:32 - What is
entropy? 39:31 - Infinity 42:43 - Many-worlds interpretation of
quantum mechanics 1:01:13 - Quantum gravity and the emergence of
spacetime 1:08:34 - Our branch of reality in many-worlds
interpretation 1:10:40 - Time travel 1:12:54 - Arrow of time
1:16:18 - What is fundamental in physics 1:16:58 - Quantum
computers 1:17:42 - Experimental validation of many-worlds and
emergent spacetime 1:19:53 - Quantum mechanics and the human mind
1:21:51 - Mindscape podcast