On Monday, February 10, 2020 at 7:35:44 AM UTC-6, scerir wrote:
>
> Physics and the Totalitarian Principle 
> Helge Kragh 
> <https://arxiv.org/search/physics?searchtype=author&query=Kragh%2C+H> 
> (Submitted on 10 Jul 2019) 
> https://arxiv.org/abs/1907.04623 
>
> What is sometimes called the "totalitarian principle," a metaphysical 
> doctrine often associated with the famous physicist Murray Gell-Mann, 
> states that everything allowed by the laws of nature must actually exist. 
> The principle is closely related to the much older "principle of 
> plenitude." Although versions of the totalitarian principle are well known 
> to physicists and often appear in the physics literature, it has attracted 
> little reflection. Apart from a critical examination of the origin and 
> history of the totalitarian principle, the paper discusses this and the 
> roughly similar plenitude principle from a conceptual perspective. In 
> addition it offers historical analyses of a few case studies from modern 
> physics in which reasoning based on the totalitarian principle can be 
> identified. The cases include the prediction of the magnetic monopole, the 
> hypothesis of radioactive protons, and the discovery of the muon neutrino. 
> Moreover, attention is called to the new study of metamaterials. 
>
> "Feynman later commented on his path integral approach to quantum 
> mechanics as follows (Feynman, Leighton and Sands 1966, p. 19-9):
> Is it true that the particle doesn’t just “take the right path” but that 
> it looks at all the other possible trajectories? … The miracle of it all 
> is, of course, that it does just that. That’s what the laws of quantum 
> mechanics say. [*The principle of least action*] isn’t that a particle 
> takes the path of least action, but that *it smells all the paths in the 
> neighborhood and chooses the one that has the least action*.
>


Interesting.

https://twitter.com/philipthrift/status/1226948036124954627

@philipthrift 

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