Persistent-current destroys a theory about 'propagation' of electrical-current

[ayeaye]

The classical fields can indeed be extracted from the wave function but there is no identity between the Schrödinger equation and the vector potential as shown by the links I provided in my previous post, see the very different definitions and formalism between the two.
Things are not at all as simplistic as you say they are, see here:
https://motls.blogspot.com/2011/11/how-classical-fields-particles-emerge.html

As someone told, don't but me, i didn't say that things are simplistic, we also though need to see things to understand.

Do you think that i am here to learn from you science or what? Indeed this place needs no more arrogance, as you have it all. For that reason it made no sense for me to be here at all. I can talk to people a lot smarter than you, with one click, and they will be happy to see me, very different from you. I though cannot be there as i am already in too many places all at once.

A thing i can say about you is though, all want to teach, no one wants to learn. And even then you need to learn one thing, be nice to people if you want to teach them. And if you even once may be, you may learn one more thing, which one old man told me, don't teach people, they learn, but they will never forgive you that you taught them.

[citfta]

As someone told, don't but me, i didn't say that things are simplistic, we also though need to see things to understand.

Do you think that i am here to learn from you science or what? Indeed this place needs no more arrogance, as you have it all. For that reason it made no sense for me to be here at all. I can talk to people a lot smarter than you, with one click, and they will be happy to see me, very different from you. I though cannot be there as i am already in too many places all at once.

A thing i can say about you is though, all want to teach, no one wants to learn. And even then you need to learn one thing, be nice to people if you want to teach them. And if you even once may be, you may learn one more thing, which one old man told me, don't teach people, they learn, but they will never forgive you that you taught them.

That old man was a fool.  The only people that don't want to be taught are those that think they already know everything.  The rest of us are glad to have anyone that wants to teach us the things we don't know.  And I am an old man also.