The headline case seems highly unlikely, but there is a fund in London that trades on Twitter sentiment, an idea which sounds like something out of a Bruce Sterling satire. You can always sell shovels to traders and the media, though - hire a few PhDs and a graphic designer and crank out some infographics and popular attention is assured. Emphasize risk and caution regularly and sooner or later events will prove you to be a genius, at which point you can do an IPO.