> to put it another way, all that "show a person who just bought a car an ad for another car" targeting was not really working. Boy that sure is true for me an

> to put it another way, all that "show a person who just bought a car an ad for another car" targeting was not really working. Boy that sure is true for me and has been for a long time. I'm often bewildered not by how accurate my ads are, but rather by how braindead they seem to be. I'm not convinced algorithm-based ads work at all. In fact I would hypothesize that ads are often more effective when they are unexpected, for something the viewer has never considered buying before. A targeted system would hide such ads.