 For advocates of self-locating belief, difference arguments have the advantage of working with cases that aren’t so strange and science-fictional. Cases in which two subjects have all the same Simple Picture-friendly beliefs, yet respond very differently to their environments, needn’t be especially peculiar—their only peculiarity is in the unlikely degree of shared belief. And cases in which subjects have all the same relevant Simple Picture-friendly beliefs, so that differences in subjects’ Simple Picture-friendly beliefs don’t explain the differences in how they respond to their environments, are not peculiar at all. They are actual, and common. (Other examples from the literature include Perry’s case of the lost hiker [1979: 4] and Kaplan’s burning pants case [1989: 537], which also features prominently in Chierchia 1989: 2–3.)