gwern, what type of predictions did you find most helpful? (E.g. political ones, personal ones, ones you were completely unsure about, ones you had to research, etc...?)
I think I found political ones and ones I didn't research most helpful; anti-mind-killer and because most decisions must be unresearched, respectively. Personal ones and researched ones didn't seem to help much.
This essay exists as a large section of my page on predictions markets on
gwern.net: http://www.gwern.net/Prediction%20markets#1001-predictionbook-nights