167 | Chiara Marletto on Constructor Theory, Physics, and Possibility

167 | Chiara Marletto on Constructor Theory, Physics, and Possibility

Traditional physics works within the "Laplacian paradigm": you give me the state of the universe (or some closed system), some equations of motion, then I use those equations to evolve the system through time. Constructor theory proposes an alternative paradigm: to think of physical systems in terms of counterfactuals — the set of rules governing what can and cannot happen. Originally proposed by David Deutsch, constructor theory has been developed by today's guest, Chiara Marletto, and others. It might shed new light on quantum gravity and fundamental physics, as well as having applications to higher-level processes of thermodynamics and biology.

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Chiara Marletto received her DPhil in physics from the University of Oxford. She is currently a research fellow at Wolfson College, University of Oxford. Her new book is The Science of Can and Can't: A Physicist's Journey Through the Land of Counterfactuals.


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Avsnitt(427)

348 | Jessica Riskin on Jean-Baptiste Lamarck and Life as Creative Agency

348 | Jessica Riskin on Jean-Baptiste Lamarck and Life as Creative Agency

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347 | Andrew Guthrie Ferguson on How Your Data Will Be Used Against You

347 | Andrew Guthrie Ferguson on How Your Data Will Be Used Against You

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16 Mars 1h 8min

346 | Erica Cartmill on How Human and Animal Minds Think and Play

346 | Erica Cartmill on How Human and Animal Minds Think and Play

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9 Mars 1h 28min

AMA | March 2026

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2 Mars 3h 53min

345 | Adam Elga on Being Rational in a Very Large Universe

345 | Adam Elga on Being Rational in a Very Large Universe

Behaving rationally involves facing up to conditions of uncertainty; we never navigate the world with perfect confidence. Sometimes we are uncertain about the way the world is, but we can also be unce...

23 Feb 1h 34min

344 | Adam Gurri on Liberal Democracy and How to Fight For It

344 | Adam Gurri on Liberal Democracy and How to Fight For It

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16 Feb 1h 21min

343 | Tom Griffiths on The Laws of Thought

343 | Tom Griffiths on The Laws of Thought

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9 Feb 1h 19min

AMA | Feb 2026

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Welcome to the February 2026 Ask Me Anything episode of Mindscape! These monthly excursions are funded by Patreon supporters (who are also the ones asking the questions). We take questions asked by Pa...

2 Feb 3h 10min

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