I don’t think that’s true, there are parameters that must be measured experimentally: https://spinor.info/weblog/?p=6355 https://spinor.info/weblog/?p=6355 (I

I don’t think that’s true, there are parameters that must be measured experimentally: https://spinor.info/weblog/?p=6355 https://spinor.info/weblog/?p=6355 (I am not a physicist, so I welcome education to clarify this).