But what if we gathered a group of those non-experts together, and were able to aggregate their collected opinions? In 1906, Charles Darwin’s cousin, Sir Francis Galton, visited the West of England Fat Stock and Poultry Exhibition in Plymouth. A perfect answer would give a result of 1, and getting them in reverse order would give a result of 0. In other words, even small groups outperformed the average individual, and the judgement improved with group size. Of course, biases are rarely absent, and it’s in those biases that we find the limitations of the wisdom of crowds.