If given the choice, would you work with someone who’s similar to you and shares your views? Or would you choose someone who’s quite dissimilar, and has a different perspective?
Research suggests that we make better decisions in diverse groups than in homogeneous ones, but that we feel less confident in those decisions1. Why? Maybe because making decisions with people similar to us feels easy; if we’re all on the same page from the start it must be the right page, mustn’t it? The overconfidence that we’re prone to individually, gets multiplied in homogeneous groups.