Sometimes we think we’re gathering information when we’re actually fishing for support. Take the tradition of calling people’s references when you want to hire them. It’s an exercise in self-justification: We believe someone is worth hiring, and as a final “check” on ourselves, we decide to gather more information about them from past colleagues. So far, so good. Then we allow the candidate to tell us whom we should call, and we dutifully interview those people, who say glowing things about the candidate, and then, absurdly, we feel more confident in our decision to hire the person. (Imagine
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