Here's a description of what they say they are doing: http://www.democraticunderground.com/1002696672 http://www.democraticunderground.com/1002696672 It seems

Here's a description of what they say they are doing: http://www.democraticunderground.com/1002696672 http://www.democraticunderground.com/1002696672 It seems reasonable. Of course, there's a cynical interpretation: they are integrating a small but positively biased noise source (e.g. due to groups that seem like they ought to add up but don't) to obtain and monetize a politically convenient quadratic. Hard to tell. EDIT: removed rant about the business model of this and similar publications EDIT2: replaced my own analysis with a link to one which is deeper and more concise