They found 136 such studies, covering everything from prediction of IQ to diagnosis of heart disease. In 48% of them, there was no significant difference between the two; the experts, in other words, were on average no better than the formulas. A much bigger blow to the notion of human superiority in judgment came from the finding that in 46% of the studies considered, the human experts actually performed significantly worse than the numbers and formulas alone.

— In our words · Source: Machine, Platform, Crowd (Andrew McAfee & Erik Brynjolfsson)