April 15, 2010
three things at once
A study suggests people are able to apply themselves efficiently to two tasks simultaneously, but no more.
Previous work has indicated that people like binary choices, or decisions between two things. They have difficultly when decisions involve more than two choices, Koechlin said. When faced with three or more choices, subjects don’t appear to evaluate them rationally; they simply start discarding choices until they get back to a binary choice.
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