Can Experimental Political Philosophers be Modest in their Aims?

The last two decades have seen an increasing interest in exploring philosophical questions using methods from empirical sciences, i.e., the so-called experimental philosophy approach. Political philosophy has so far been relatively unaffected by this trend. However, because political philosophers typically rely on traditional philosophical methods—most notably reflective equilibrium in a form which requires neither empirical examination of people’s considered beliefs nor experimental attention to psychological studies of the mechanisms affecting those beliefs—it is as proper a target of the standard challenges from experimental philosophers as any other philosophical discipline. Sometimes experimental philosophers modestly present their approach as a supplement to traditional philosophical methods. I argue that the arguments in favour of experimental philosophy are such that if they are sound, then the use of empirical methods should drastically change how political philosophy is done.