Ars Against Rationalism

A quick post over at Ars, showing how susceptible the human mind is to being fooled.

"Prior to asking the actual number, Mlodinow had asked a question that subtly primed each group. For one half of the audience, he asked if they thought there were more than 180 countries in Africa; this group ended up with a much higher mean. The second half was asked if there were more than five. Their answers were, on average, too low. Although this was a case of conscious manipulation, it's easy to see how a similar effect could be generated accidentally, simply based on (for example) the order of questions in a survey."