This. If they were actually guessing wrong, they would just stop guessing. Even if they didn't employ mostly geniuses, they would know to compare their models a

This. If they were actually guessing wrong, they would just stop guessing. Even if they didn't employ mostly geniuses, they would know to compare their models against random chance. But my guess is, their models will actually do considerably better than random chance. I find google searches massively more helpful than duckduckgo searches not because ddg isn't a good search engine, but because ddg isn's snooping on me and just doesn't already know that I work a lot with such-and-such CMS. And this is really all much ado about nothing, since if google were to ever overfit and render me unable to find something that it thinks is not my usual interest, I would just browse right back over to ddg.