Human behavior is an enigma that fascinates many scientists. And there has been much discussion over the role of probability in explaining how our minds work.

Probability is a designed to tell us how likely an event is to occur—and works well for many everyday situations. For example, it describes the outcome of a coin toss as ½—or 50%—because throwing either heads or tails is equally probable.

Yet research has shown that human behavior can't be fully captured by these traditional or "classical" laws of probability. Could it instead be explained by the way probability works in the more mysterious world of quantum mechanics?

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