According to Popper (1963), some scientific theories, though false, are closer to the truth than others. Work on his notion of verisimilitude has distinguished “likeness” and “content” dimensions, and the question arises whether these can be combined into a single ordering of theories by their overall verisimilitude. Zwart and Franssen (2007) argue that Arrow’s theorem does not apply to this problem but, using a theorem inspired by it, they argue that there is no good way to combine the different dimensions even so. See Schurz and Weingartner (2010) and Oddie (2013) for constructive criticism of their views.