I feel like a crazy person every time I try to point out that North America is already there. We've just done it in a less reductionist manner, in which multiple scores are used for different purposes, because you can discriminate better with better targeted data. The IRS rates you on likelihood of fraud, border patrol rates you on your likelihood of breaking residency law, the FBI rates everyone's chances of being a…
* The financial crisis was partially a result of mortgages being given to people whose financial data would have suggested that they had no business borrowing so much money. In that case, the opposite of your point is true. This shows that attention to data is beneficial to a mortgage system because it helps avoid questionable loans.
* My friends don't rate my worth, because I don't have friends.