Quantum Physics and Many Worlds

Aug 24, 2017

by Eliezer Yudkowsky

Quantum mechanics is our best mathematical model of the universe to date, powerfully confirmed by a century of tests. However, interpreting what the experimental results mean - how and when the Shrödinger equation and Born's rule interact - is a topic of much contention, with the main disagreement being between the Everett and the Copenhagen interpretations.

Yudkowsky uses this scientific controversy as a proving ground for some central ideas from previous sequences: map-territory distinctions, mysterious answers, Bayesianism, and Occam’s Razor.

Quantum Explanations

3911y5 min readShow Highlight
56

Configurations and Amplitude

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386

Joint Configurations

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40

Distinct Configurations

3311y31 min readShow Highlight
23

Collapse Postulates

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61

Decoherence is Simple

2811y35 min readShow Highlight
60

Decoherence is Falsifiable and Testable

2511y72 min readShow Highlight
34

Privileging the Hypothesis

639y10 min readShow Highlight
131

Living in Many Worlds

2511y5 min readShow Highlight
79

Quantum Non-Realism

2511y13 min readShow Highlight
37

If Many-Worlds Had Come First

5611y8 min readShow Highlight
180

Where Philosophy Meets Science

2411y4 min readShow Highlight
22

Thou Art Physics

4811y3 min readShow Highlight
88

Many Worlds, One Best Guess

1811y21 min readShow Highlight
77