Why did they do that?
Judea Pearl argues that people as well as machines with artificial intelligence must use causal reasoning to make decisions and to explain or justify those decisions. We wholeheartedly agree with Judea on this point, but show that the ability to identify available alternatives and the ability to express preferences are also necessary for making and explaining decisions. We briefly review the basic principles of decision theory, showing how these three abilities come together in decision making. We illustrate these principles with examples including Judea’s incisive depiction of the story of Adam and Eve.Download