At first glance, ‘post-truth’, the Oxford Dictionary’s word of the year for 2016, appears to be inimical to the interests of scientists. However, according to one of the 20th Century’s leading philosophers, science itself can be regarded in post-truth terms.
Even today, more than fifty years after its first edition, Thomas Kuhn’s The Structure of Scientific Revolutions remains the first port of call to learn about the history, philosophy or sociology of science. This is the book famous for talking about science as governed by ‘paradigms’ until overtaken by ‘revolutions’.
Kuhn argued that the way that both scientists and the general public need to understand the history of science is Orwellian. He is alluding to 1984, in which the protagonist’s job is to rewrite newspapers from the past to make it seem as though the government’s current policy is where it had been heading all along. In this perpetually airbrushed version of history, the public never sees the U-turns, switches of allegiance and errors of judgement that might cause them to question the state’s progressive narrative. Confidence in the status quo is maintained and new recruits are inspired to follow in its lead. Kuhn claimed that what applies to totalitarian 1984 also applies to science united under the spell of a paradigm.
What makes Kuhn’s account of science ‘post-truth’ is that truth is no longer the arbiter of legitimate power but rather the mask of legitimacy that is worn by everyone in pursuit of power. Truth is just one more – albeit perhaps the most important – resource in a power game without end. In this respect, science differs from politics only in that the masks of its players rarely drop.