[notahacker]

There's also the it's all about how you react explanation: brands blanket people with advertising which you wilfully ignore except for those rare instances where it coincides with something you want or something that happens to resonate because you were talking about it moments earlier. And maybe your friends were making fun of Juicero at the time after being prompted by being bombarded with ads for it, rather than you being bombarded with ads because your friends made fun of it...

I think I've got a lot of Facebook ads blocked, so I'm looking at a right hand column which is recommending me pages of random companies one of my friends has once liked and suggesting translations into two languages I don't speak which are spoken in countries I've never visited and have minimal connection with. Which I guess is an upgrade on all the dating ads which didn't even bother to match my "interested in"...