Levi is out swinging (in the most entertaining way possible; I love it when he gets on a roll, and I do agree with him on much of it).
Of course, there’s not much new in what he says (that hasn’t been said by Left-realists for the last few decades, and by Latour more recently). But of course it still needs to be said (in some circles, like to Left anti-realists) and it’s better said by constructivist realists (like Bryant, Latour, et al.) than by anti-constructivists (on the Right or Left). Constructivist realism — a realism that avows the constructedness (enactedness, emergentness, historicity) of everything, from quarks to civilizations to universes — is where things are at. (Which is why I appreciate Levi’s philosophizing so much.)
The comments that follow his post include some rejoinders from Peircians (like Mark Crosby and Matt Segall), who don’t like Bryant’s seeming characterization of Charles Sanders Peirce as an anti- or non-realist. In response, Levi writes that “we never really see Pierce employed outside the humanities.” Here he needs to be corrected.