Most people don't know, that "prediction markets" are acutally based on an idea by DARPA in 2002, after 9/11/2001.
Did they then use a time machine to go back to the mid-90's to pass the idea to Jim Bell so he could take the fall for some of the less attractive possible outcomes?
DARPA did have a big role though, too.
[1] https://docs.google.com/spreadsheets/d/1vGjnJPxdnBKwag3Q9Uy_...