Acting rationally 1 Rational behavior:doing the right thing The right thing:that which is expected to maximize goal achievement,given the available information Doesn't necessarily involve thinking-e.g.,blinking reflex-but thinking should be in the service of rational action ~Aristotle(Nicomachean Ethics,亚里士多德所著《尼各马可伦 理学》) Every art and every inquiry,and similarly every action and pursuit,is thought to aim at some good I Entirely dependent on goals! I Irrational insane,irrationality is sub-optimal action I Rational successful Our focus here: Systems which make the best possible decisions given goals, evidence,and constraints In the real world,usually lots of uncertainty ..and lots of complexity Usually,we're just approximating rationality 461三1声，是90C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Acting rationally ▶ Rational behavior: doing the right thing ▶ The right thing: that which is expected to maximize goal achievement, given the available information ▶ Doesn’t necessarily involve thinking—e.g., blinking reflex—but thinking should be in the service of rational action ▶ Aristotle (Nicomachean Ethics, 亚里士多德所著《尼各马可伦 理学》): Every art and every inquiry, and similarly every action and pursuit, is thought to aim at some good ▶ Entirely dependent on goals! ▶ Irrational ̸= insane, irrationality is sub-optimal action ▶ Rational ̸= successful ▶ Our focus here: ▶ Systems which make the best possible decisions given goals, evidence, and constraints ▶ In the real world, usually lots of uncertainty ▶ . . . and lots of complexity ▶ Usually, we’re just approximating rationality