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The podcast delves into the question of what is real and how humans perceive reality. It discusses the existence of an external world that is independent of personal experience, emphasizing the pursuit of understanding beyond subjective perceptions.
The conversation touches on the difficulty of grasping the real world, suggesting that human brains construct and process experiences. Despite the processed nature of our perception, the belief in an underlying objective reality persists, raising questions about intuitive understanding versus scientific tools in exploring truth.
The podcast examines the historical scientific revolutions and progress, highlighting the transition from Aristotelian physics to modern theories. It emphasizes the role of the scientific community in advancing ideas that lead to practical applications and technological advancements over centuries.
Discussion focuses on the concept of the scientific method, challenging the traditional notion of a fixed scientific approach. It explores the community-driven nature of science, emphasizing ethical principles, rigorous testing, and continuous reevaluation as essential components of scientific advancement.
The podcast explores contrasting perspectives on realism and anti-realism in physics, specifically in relation to quantum mechanics. It discusses the implications of different philosophical stances on the nature of reality and consciousness, shedding light on the debates within the theoretical physics community.
Lee Smolin is a theoretical physicist, co-inventor of loop quantum gravity, and a contributor of many interesting ideas to cosmology, quantum field theory, the foundations of quantum mechanics, theoretical biology, and the philosophy of science. He is the author of several books including one that critiques the state of physics and string theory called The Trouble with Physics, and his latest book, Einstein’s Unfinished Revolution: The Search for What Lies Beyond the Quantum.
EPISODE LINKS:
Books mentioned:
– Einstein’s Unfinished Revolution by Lee Smolin: https://amzn.to/2TsF5c3
– The Trouble With Physics by Lee Smolin: https://amzn.to/2v1FMzy
– Against Method by Paul Feyerabend: https://amzn.to/2VOPXCD
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, follow on Spotify, or support it on Patreon.
This episode is presented by Cash App. Download it (App Store, Google Play), use code “LexPodcast”.
Here’s the outline of the episode. On some podcast players you should be able to click the timestamp to jump to that time.
OUTLINE:
00:00 – Introduction
03:03 – What is real?
05:03 – Scientific method and scientific progress
24:57 – Eric Weinstein and radical ideas in science
29:32 – Quantum mechanics and general relativity
47:24 – Sean Carroll and many-worlds interpretation of quantum mechanics
55:33 – Principles in science
57:24 – String theory
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