Surprisingly popular
The surprisingly popular answer is a wisdom of the crowd technique that taps into the expert minority opinion within a crowd. For a given question, a group is asked both "What do you think the right answer is?" and "What do you think the popular answer will be?" The answer that maximizes the average difference between the "right" answer and the "popular" answer is the "surprisingly popular" answer. The term "surprisingly popular" was coined in a 2017 paper published in "Nature" entitled "A solution to the single-question crowd wisdom problem", which outlined the technique. Example. Suppose the  question to be determined is: Is Philadelphia the capital of Pennsylvania? The two questions asked of the group, and the numbers of responses, are: The difference between the answers to the "right" question and the "popular" question: Thus, the "No" answer is surprisingly popular (10% > −10%). Because of the relatively high margin of 10%, there can be high confidence that the correct answer is "No". (The capital is indeed not Philadelphia, but Harrisburg.) An illustrative breakdown of this follows. There are four groups of people. This technique causes groups A and C to be eliminated from consideration and measures  the difference in size between groups B and D. Both groups B and D think they know something other people don't, but B is wrong and D is right. In cases where people feel like they have "inside" knowledge, it's more often the case that it's because they are correct and knowledgeable (group D), not because they are misled (group B).