Wikipedia says the term "Synthetic Intelligence" is a synonym for GAI. I'd like to propose a different use: as a name for the superclass encompassing things like prediction markets. This usage occurred to me while considering 4chan as a weakly superintelligent optimization process with a single goal; something along the lines of "producing novelty;" something it certainly does with a paperclippy single-mindedness we wouldn't expect out of a human.

It may be that there's little useful to be gained by considering prediction markets and chans as part of the same category, or that I'm unable to find all the prior art in this area because I'm using the wrong search terms--but it does seem somewhat larger and more practical than gestalt intelligence.