Anyone who has been paying attention to the fault lines of academic debate for the past 20 years already knows that the "science wars" were fought by natural scientists (and their defenders in the philosophy of science) on the one side and literary critics and cultural-studies folks on the other. The latter argued that even in the natural realm, truth is relative, and there is no such thing as objectivity. The skirmishes blew up in the well-known "Sokal affair" in 1996, in which a prominent physicist created a scientifically absurd postmodernist paper and was able to get it published in a leading cultural-studies journal. The ridicule that followed may have seemed to settle the matter once and for all.The reason it burns is that there is a whole lot invested in the idea that we can't simply reason from observations of the facts of nature to objective conclusions that should guide our actions.
But then a funny thing happened: While many natural scientists declared the battle won and headed back to their labs, some left-wing postmodernist criticisms of truth began to be picked up by right-wing ideologues who were looking for respectable cover for their denial of climate change, evolution, and other scientifically accepted conclusions. Alan Sokal said he had hoped to shake up academic progressives, but suddenly one found hard-right conservatives sounding like Continental intellectuals. And that caused discombobulation on the left.
"Was I wrong to participate in the invention of this field known as science studies?," Bruno Latour, one of the founders of the field that contextualizes science, famously asked. "Is it enough to say that we did not really mean what we said? Why does it burn my tongue to say that global warming is a fact whether you like it or not? Why can’t I simply say that the argument is closed for good?"
It would be a terrible mistake for the right to adopt the 'winning strategy' of refusing to recognize truth based on objective facts, however. Play stupid games, as they say, and you'll win stupid prizes.