Intuitive Expertise and Irrelevant Options
In the ‘push-dilemma,’ a train is about to run over several people and can only be stopped by pushing a heavy person onto the tracks. Most lay people and moral philosophers consider the ‘push-option,’ i.e., pushing the heavy person, as morally wrong. Peter Unger (1992, 1996) suggested that adding irrelevant options to the push-dilemma would overturn this intuition. This chapter tests Unger’s claim in an experiment with both lay people and expert moral philosophers. This allowed an investigation of the ‘expertise defense,’ which various philosophers have suggested as an answer to ‘experimental restrictionists,’ who argue that experimental philosophy undermines the trustworthiness of intuitions about hypothetical cases. Overall, the chapter finds that adding irrelevant options increases the ratings for the push-option. Moreover, the intuitions of expert moral philosophers are no less susceptible to the presence of irrelevant options than lay people’s intuitions. The chapter discusses how these findings bear on the expertise defense.