Comment on Feynman rules

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FishFace@piefed.social ⁨2⁩ ⁨weeks⁩ ago

This means, first of all, that there will always be a practical end to good answers to “why” questions.

But if you think that there is truly no end, it also means that the workings of the universe are infinite in a very strange sense: if there’s an infinite succession of explanation, what does that mean? An explanation is a description of something that implies the characteristics of what you’re explaining, right? And it can’t just describe all the details of the thing being explained, it must be simpler on some level.

I don’t really see how you get this infinite succession of simplifications. Maybe it makes sense if the universe is infinitely complex, so that for example, the behaviour of atoms is explained by the behaviour of protons, neutrons and electrons, which are explained by quarks and still smaller sub-electron particles, and this sequence of subdivision goes ever smaller. I don’t see any good reason to believe that though.

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