 The two most often repeated arguments against this sort of Platonism are: it does not identify criteria to distinguish good from bad thought experiments, and it violates the principle of ontological parsimony. These seem weak objections. Perhaps they find widespread acceptance because Platonism seems to be unfashionable these days (see Grundmann 2018), given the general popularity of various forms of naturalism. If intuitions really do the job in a thought experiment, the first objection is weak because neither rationalists nor empiricists have a theory about the reliability of intuitions. So the objection should be that intuitions probably just do not matter in human cognition. However, there are good reasons to question the truth of this claim (see Myers 2004). This is not to marginalize the problems that arise when admitting intuitions as a source of knowledge and justification, especially in philosophy (see Hitchcock 2012).