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Evolution

Selection for positive illusions

Everybody knows that overconfidence can be foolhardy. But a study reveals that having an overly positive self-image might confer an evolutionary advantage if the rewards outweigh the risks. See Letter p.317

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Figure 1: Float like a butterfly, sting like a bee.

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Correspondence to Matthijs van Veelen or Martin A. Nowak.

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van Veelen, M., Nowak, M. Selection for positive illusions. Nature 477, 282–283 (2011). https://doi.org/10.1038/477282a

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