> As long as there isn't a strong bias to people's estimate, the average will converge on the truth.
Yes, as long as the truth is the most significant systematic influence on beliefs, any reasonable method of aggregrate of belief will converge on the truth with sufficient numbers.
Unfortunately, the required condition for convergence on the truth is often not true, and there is no way of reliably determining when it is true other than determining the truth independently and determining if belief converges on it.
Significant effects on belief about facts from cognitive/perceptual biases, especially where the fact is not something easily observable like “is it raining at this instant where you are standing” are not rare, and these biases often align for similarly situated individuals.
Yes, as long as the truth is the most significant systematic influence on beliefs, any reasonable method of aggregrate of belief will converge on the truth with sufficient numbers.
Unfortunately, the required condition for convergence on the truth is often not true, and there is no way of reliably determining when it is true other than determining the truth independently and determining if belief converges on it.
Significant effects on belief about facts from cognitive/perceptual biases, especially where the fact is not something easily observable like “is it raining at this instant where you are standing” are not rare, and these biases often align for similarly situated individuals.