How many does it take to screw in a light bulb?的中文意思
书上给出的这个问题的答案是：who knows; you can't draw up a decision matrix in the dark.
为了便于大家回答，我把这个问题的上下文完整地提供如下：
You probably have heard all the jokes about decision theorists who cannot make wise choices.(How many does it take to screw in a light bulb?Who knows; you can't draw up a decision matrix in the dark.What do you call a decision theorist with a bank balance?A meal ticket.)