“When we see holes in our theories, or contradictions, or anomalies, we should be bothered by these things rather than trying to explain them away,” he says. That capacity for discomfort is the mark of an honest scientist. Gelman believes that people in his profession have to seek out challenges to their own beliefs. They have to be willing to change their minds.”

“When we see holes in our theories, or contradictions, or anomalies, we should be bothered by these things rather than trying to explain them away,” he says. That capacity for discomfort is the mark of an honest scientist. Gelman believes that people in his profession have to seek out challenges to their own beliefs. They have to be willing to change their minds.”

— Ben Cohen