36 | David Albert on Quantum Measurement and the Problems with Many-Worlds

36 | David Albert on Quantum Measurement and the Problems with Many-Worlds

Quantum mechanics is our best theory of how reality works at a fundamental level, yet physicists still can't agree on what the theory actually says. At the heart of the puzzle is the "measurement problem": what actually happens when we observe a quantum system, and why do we apparently need separate rules when it happens? David Albert is one of the leading figures in the foundations of quantum mechanics today, and we discuss the measurement problem and why it's so puzzling. Then we dive into the Many-Worlds version of quantum mechanics, which is my favorite (as I explain in my forthcoming book Something Deeply Hidden). It is not David's favorite, so he presents the case as to why you should be skeptical of Many-Worlds. (The philosophically respectable case, that is, not a vague unease at all those other universes.) Support Mindscape on Patreon or Paypal. David Albert received his Ph.D. in physics from Rockefeller University. He is currently the Frederick E. Woodbridge Professor of Philosophy at Columbia University. His research involves a number of topics within the foundations of physics, including the arrow of time (coining the phrase "Past Hypothesis" for the low-entropy state of the early universe) and quantum mechanics. He is the author of a number of books, including Time and Chance, Quantum Mechanics and Experience, and After Physics. Columbia web page Publications at PhilPapers Wikipedia page Videos at Closer to Truth BigThink interview

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281 | Samir Okasha on the Philosophy of Agency and Evolution

281 | Samir Okasha on the Philosophy of Agency and Evolution

Just like with physics, in biology it is perfectly possible to do most respectable work without thinking much about philosophy, but there are unmistakably foundational questions where philosophy becom...

1 Juli 20241h 11min

280 | François Chollet on Deep Learning and the Meaning of Intelligence

280 | François Chollet on Deep Learning and the Meaning of Intelligence

Which is more intelligent, ChatGPT or a 3-year old? Of course this depends on what we mean by "intelligence." A modern LLM is certainly able to answer all sorts of questions that require knowledge far...

24 Juni 20241h 41min

279 | Ellen Langer on Mindfulness and the Body

279 | Ellen Langer on Mindfulness and the Body

For those of us who are not dualists, the mind arises from our physical bodies -- mostly the brain, but the rest of the body has a role to play. And yet it remains tempting to treat the mind as a thin...

17 Juni 20241h 11min

278 | Kieran Healy on the Technology of Ranking People

278 | Kieran Healy on the Technology of Ranking People

We claim to love all of our children, friends, and students equally. But perhaps deep down you assign a ranking to them, from favorite to not-so-favorite. Ranking and quantifying people is an irresist...

10 Juni 20241h 15min

AMA | June 2024

AMA | June 2024

Welcome to the June 2024 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 Patreo...

3 Juni 20243h 58min

277 | Cumrun Vafa on the Universe According to String Theory

277 | Cumrun Vafa on the Universe According to String Theory

String theory, the current leading candidate for a theory of quantum gravity as well as other particles and forces, doesn't connect directly to the world we see. It's possible that there is a large la...

27 Maj 20241h 22min

276 | Gavin Schmidt on Measuring, Predicting, and Protecting Our Climate

276 | Gavin Schmidt on Measuring, Predicting, and Protecting Our Climate

The Earth's climate keeps changing, largely due to the effects of human activity, and we haven't been doing enough to slow things down. Indeed, over the past year, global temperatures have been higher...

20 Maj 20241h 19min

275 | Solo: Quantum Fields, Particles, Forces, and Symmetries

275 | Solo: Quantum Fields, Particles, Forces, and Symmetries

Publication week! Say hello to Quanta and Fields, the second volume of the planned three-volume series The Biggest Ideas in the Universe. This volume covers quantum physics generally, but focuses espe...

13 Maj 20242h 12min

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