Most of the silliness is just the making fun of other teams / boosting your team stuff. But some of the silliness is in overconfidence (under-caution?) with a dash of ignorance. We still have a whole theory of everything to figure out still, after all. And until there's a derivation of the Born probabilities, many worlds isn't necessarily simpler than a model with physical collapse. Many worlds and discontinuous faster than light collapse aren't the only two options, despite the dichotomous presentation. And cetera.

The "mangled worlds" stuff is Robin Hanson's idea originally, echoed by Eliezer occasionally in the QM sequence (for example, in the most recent sequence rerun).

And until there's a derivation of the Born probabilities, many worlds isn't necessarily simpler than a model with physical collapse.

I find that difficult to believe. Born probabilities are comparable to a law that causes particles to become disentangled, if you ignore the violations of the Tao of physics. In order to get a complete theory, you also have to have a law that causes particles to become entangled, and a law that causes particles to interact without ever becoming entangled.

Am I missing something?

(for example, in the most recent sequence rer

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0Luke_A_Somers8yHow's this? http://lesswrong.com/lw/8p4/2011_survey_results/5e7e [http://lesswrong.com/lw/8p4/2011_survey_results/5e7e]
0Douglas_Knight8yCould you be specific about this dash of ignorance?

How accurate is the quantum physics sequence?

by Paul Crowley 1 min read17th Apr 201268 comments

49


Prompted by Mitchell Porter, I asked on Physics StackExchange about the accuracy of the physics in the Quantum Physics sequence:

What errors would one learn from Eliezer Yudkowsky's introduction to quantum physics?

Eliezer Yudkowsky wrote an introduction to quantum physics from a strictly realist standpoint. However, he has no qualifications in the subject and it is not his specialty. Does it paint an accurate picture overall? What mistaken ideas about QM might someone who read only this introduction come away with?

I've had some interesting answers so far, including one from a friend that seems to point up a definite error, though AFAICT not a very consequential one: in Configurations and Amplitude, a multiplication factor of i is used for the mirrors where -1 is correct.

Physics StackExchange: What errors would one learn from Eliezer Yudkowsky's introduction to quantum physics?