〈 Berger | Dillon 〉

Though if I’m not mistaken the S matrix and correlation functions and the invariant matrix element are essentially the same thing with different names

The smatrix is just a correlation function with some extra creation and annihilation operators

Hmm I guess the path from correlation function —> Smatrix seems to involve changes in information to me. Like if it was only a Fourier transform I’d be able to conceptualize how they’re the same, but I have a hard time of doing so now

You’re right about that ontologically

I was speaking purely mathematically, to my detriment

Yeah I think this could be a weakness of structural realism, but no matter how much I think about it it’s still hard to say anything that makes sense ontologically of correlation functions and the other mathematical objects/processes that we’re dealing with

Possible that there are better questions to ask: does this have physical significance? Yes. Should we expect it to be preserved in a more fundamental theory? Yes. Then, here’s why....

But the question of what is being preserved isn’t even obvious lol