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In this episode, physicist and philosopher Jean Bricmont discusses his views on quantum mechanics and why he considers the de Broglie-Bohm theory to be the most satisfactory understanding of quantum phenomena. Key points include:

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Simon Friederich is an Associate Professor of Philosophy of Science at the University of Groningen. His work focuses on quantum foundations and interpretations, and he has written a book about interpretation of quantum mechanics.

In this episode, we discuss:
• The three main types of quantum interpretations: anti-realist/Copenhagen, many-worlds/Everett, and Bohmian mechanics
• The measurement problem in quantum mechanics
• Phase space quantum mechanics and quantization
• The Kochen-Specker theorem and its implications
• The Q-function (Husimi function) as an alternative to the Wigner function
• Temporal bidirectional stochastic dynamics and its relation to Bell's theorem

Key Highlights:
• The distinction between formulation and interpretation in quantum mechanics
• Einstein's vision of quantum mechanics as similar to classical statistical mechanics
• How the Q-function might provide a new perspective on quantum mechanics
• The possibility of violating Bell inequalities through backward-in-time nomological probabilistic dependencies without retrocausality

Quotes:
• "For some reason, when it comes to quantum mechanics, people immediately assume you have to then each different formulation automatically comes with an interpretation, which isn't really the case."
• "I have come to think that actually this is very weirdly argued because you start with assuming that the quantum dynamic variables are not the classical ones, but they are these self adjoint linear operators. And then you ask yourselves, hey, how can I assign sharp values to those things?"

• "If you think of the quantization mapping as a mapping within quantum theory, and not the self adjointly operators represent the classical dynamical variables, then Kochen Specker non contextuality is not a plausible assumption because all the most promising quantization mappings, they don't preserve algebraic relations."

Links/References:
• Introducing the Q-based interpretation of quantum theory by Simon Friederich

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Wayne Myrvold is a Professor of Philosophy at the University of Western Ontario. He specializes in philosophy of physics and has made significant contributions to our understanding of quantum mechanics, particularly regarding Bell's theorem and quantum state realism. He is also the co-author of the Stanford Encyclopedia article on Bell's theorem.

In this episode, we discuss:

• The problem with treating quantum interpretations like sports teams and why we should avoid simply "picking a side"

• Why the common belief that classical physics had no interpretational debates is historically incorrect

• The real meaning of Bell's theorem and why the phrase "local realism" has muddied the waters

• The distinction between different formulations of a theory versus different theories

• Historical debates about the nature of matter, including fascinating examples like the "molecular vortices" theory

• Why quantum mechanics demands interpretation in ways that seem different from classical theories

• The status of quantum state realism and what we can confidently say about quantum reality

Key Highlights:

Quotes:
"I don't give a shit whether I like the answer or not." - on approaching quantum foundations
"There has never been a time in the history of science when there was a clear consensus on what the world was like at the fundamental level."

Links/References: