Talk:Causal perturbation theory

It would be good for this article to clarify exactly how much of QFT is put on a rigorous mathematical footing by this theory. There is still no completely rigorous definition of an interacting QFT in 3+1 dimensions, so this theory can't make everything rigorous. What exactly does it accomplish? -- Spireguy (talk) 15:35, 13 June 2011 (UTC)

> This is best descibed as an obscure curiosity. 143.233.252.2 (talk) 09:25, 4 September 2019 (UTC)