The essence of a scientific theory lies in what it rules out and what it doesn't. Popper's philosophy stresses the duty to be optimistic and focus on making things how they ought to be. There is a contrast in views between embracing Bayesian reasoning and rejecting Bayesian epistemology, particularly the idea that knowledge is composed of propositions accompanied by numbers in a rational mind.
David Deutsch is one of the most creative scientific thinkers working today, who has as a goal to understand and explain the natural world as best we can. He was a pioneer in quantum computing, and has long been an advocate of the Everett interpretation of quantum theory. He is also the inventor of constructor theory, a new way of conceptualizing physics and science more broadly. But he also has a strong interest in philosophy and epistemology, championing a Popperian explanation-based approach over a rival Bayesian epistemology. We talk about all of these things and more, including his recent work on the Popper-Miller theorem, which specifies limitations on inductive approaches to knowledge and probability.
Blog post with transcript: https://www.preposterousuniverse.com/podcast/2023/10/16/253-david-deutsch-on-science-complexity-and-explanation/
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David Deutsch received his Ph.D. in theoretical physics from the University of Oxford. He is currently a visiting professor in the Department of Atomic and Laser Physics at Oxford. He is a pioneer in quantum computation as well as initiating constructor theory. His books include The Fabric of Reality and The Beginning of Infinity. Among his awards including the Dirac Prize, the Dirac Medal, the Edge of Computation Science Prize, the Isaac Newton Medal, the Breakthrough Physics Prize, and a Royal Society Fellowship.
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