I think the argument being made is that, even when they know everything about you, they still can't target you properly. An example, I visit Amazon and my reco

I think the argument being made is that, even when they know everything about you, they still can't target you properly. An example, I visit Amazon and my recommendations for the "buy it again" section are all very expensive networking equipment that I literally just ordered from Amazon to build out a new home network. There aren't any recommendations for consumables, like the box of exam gloves, hair gel, or the windshield wiper fluid tablets that I purchased in the last 6 months.