Nature Video

Less is more: Why our brains struggle to subtract

Experiments show that people default to adding as a solution in various situations

When solving problems, humans tend to think about adding something before they think of taking something away — even when subtracting is the better solution. Experiments show that this newly discovered psychological phenomenon applies across a range of situations from improving a physical design to solving an abstract puzzle. People think about what they can add before they think about what they can take away.

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