> the likes of which the world has never seen Didn't Google buy tons of Mastercard transaction data to JOIN against their ad profiles? How does the scale of th

> the likes of which the world has never seen Didn't Google buy tons of Mastercard transaction data to JOIN against their ad profiles? How does the scale of this (and other purchasing datasets they can bring in) compare to the theoretical powers of what Facebook has? I guess one difference might be that it will be able to capture way more outside the US.