Renato Renner: Quantum Mechanics Contains Its Own Contradictions
3/30/20263 hr 26 min
Renato Renner (ETH Zurich) proves quantum mechanics contains logical contradictions that undermine its foundations.
Quantum theory may be the most successful theory in history — and Renato Renner has proved it can't consistently describe itself. This is not a philosophical objection. It's a theorem. From there it spirals into black holes, reference frames, and why some of his students refused to continue working on the subject. This one is a quiet storm, blending the foundations of physics with something uncomfortably personal: the question of what you are. TIMESTAMPS: - 00:00:00 - Quantum Theory's Internal Contradiction - 00:05:51 - Recursive Consistency Checks ...
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First 90 secondsRenato Renner· Guest0:00
It really troubles me that there is this problem, this contradiction. I had some students who said for psychological reasons not be able to work on such projects. It would disturb them too much.
Curt Jaimungal· Host0:10
Most physicists apply quantum theory and never turn it on themselves. It turns out there are scenarios where quantum mechanics leads you to contradictions when applied to quantum observers.
Renato Renner· Guest0:26
You're absolutely certain it's heads. I see it's tails.
Curt Jaimungal· Host0:29
That's Professor Renato Renner of ETH Zurich telling me that it turns out one of these things must break. Number one, quantum theory applies to everything, including observers. That seems natural. Number two, that measurements give single outcomes. And number three, that reasoning stays consistent. All of these are already assumed to be true. We think that the large world is made up of the small, and thus quantum theory applies to everything else. Yet we don't know which one of these is wrong, and getting rid of any is just as unsettling. On this channel, I, Curt Jaimungal, interview researchers regarding their theories of reality with rigor and technical depth. Today, we discuss why this drove the professor from many worlds through to what he calls no man's land. We connect it back to the black hole information paradox, to the limits of probability, and to why some of his students refuse to continue, because these projects are about the fundamental question of what you are. Professor, you've proved that quantum