Four Views of AI
	• Acting humanly – Turing Test (Alan Turing, 1950) • Thinking humanly – cognitive modeling GPS (Newell & Simon, 1960) • Thinking rationally – laws of thought, logic, Aristotle’s syllogisms • Acting rationally – when there’s no provably correct action but one must act, uncertainty, “acting so as to best achieve one’s goals, given one’s beliefs”