Excellent articule - an esoteric concept explained lucidly.
My take from reading Matthew Syed's Rebel Ideas:
Prediction = Information + Error
For predictions to be 100% accurate, the error must be zero. Predicting the future is impossible. What Syed shows is that diverse crowds predict more accurately than a group of like-minded individuals. Why is this? Due to the cancellation of errors. In a diverse crowd, positive predictions cancel out negative predictions resulting in improved accuracy.
Would really appreciate your feedback on my article!