Semafor's @lizrhoffman says prediction markets will replace "huge portions" of investing: "If I'm an investor, and I think that Coca-Cola is going to beat earnings — right now my options are like, 'I can go buy a call on Coca-Cola, short Pepsi, and hope that there's not a weird weather thing at the bottling plant in Atlanta or whatever. There's a lot of weird risks there." "And if you can just hit 'Yes' on that contract, it seems to me that a lot of investing is going to move that way." "As…