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

4011y5 min readShow Highlight
57

Configurations and Amplitude

4011y10 min readShow Highlight
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Joint Configurations

3011yShow Highlight
40

Distinct Configurations

3411yShow Highlight
23

Collapse Postulates

2911yShow Highlight
61

Decoherence is Simple

2811yShow Highlight
60

Decoherence is Falsifiable and Testable

2811yShow Highlight
34

Privileging the Hypothesis

6510yShow Highlight
131

Living in Many Worlds

2611yShow Highlight
79

Quantum Non-Realism

2611yShow Highlight
37

If Many-Worlds Had Come First

5711yShow Highlight
181

Where Philosophy Meets Science

2611yShow Highlight
22

Thou Art Physics

5711yShow Highlight
88

Many Worlds, One Best Guess

2011yShow Highlight
77