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Following the links in the article, it seems it's about: https://ncatlab.org/nlab/show/Schwinger-Tomonaga-Feynman-Dyson https://ncatlab.org/nlab/show/Schwinger

• spekcular 6y ago
  The first link is indeed relevant, but the second is emphatically not what physicists talk about when they talk about QFT. (It is generally true that nLab usually lacks perspective, to put it mildly, and the corresponding Wikipedia articles are likely more information.) For a description of the differences, I suggest this paper (link is to a preprint version): http://philsci-archive.pitt.edu/8890/1/critique_sep10.pdf http://philsci-archive.pitt.edu/8890/1/critique_sep10.pdf. The author also gave a talk on it which was recorded and put on YouTube.
  • acqq 6y ago
    > the second is emphatically not what physicists talk about when they talk about QFT Thanks many times. It looked weird to me too, but I've thought "well, some fringe theoretical physicists -- metaphysics topics". "Quantum" attracts everything.