 Psychologist Zenon Pylyshyn (1984) appeals to multiple realizability to ground a methodological criticism of reductionism about psychology. He describes a pedestrian (in the U.S., say), having just witnessed an automobile accident, rushing into a nearby phone booth and dialing a 9 and a 1.  (For readers unfamiliar with phone booths, suppose instead that he pulls out his cell phone and punches those numbers.) What will this person do next? With very high probability, he will dial (push) another 1. Why? Because in the U.S., 911 is the universal emergency number and there is a systematic generalization holding between the event he witnessed, his background knowledge, resulting intentions, and that subsequent action (all intentionally described).