Well now I want to test this. Do we have anyone here who thinks they know a thing or two about the stock market? If so would they be amenable to an experiment?

I'm thinking that they would agree not to look at any stock price information for a day (viewing all the other news they want). At the end of the day they are presented with some possible sets of market closes, all but one of which of which are fake, and we see if they can reliably find the right one.