this "documentary" is complete propaganda. if i'm into pokemon, i want to see pokemon ads. everyone already knows that that's how it works. the "terrible big bad algorithm," works solely off of what you give it. if you're so upset about that, then don't use the app. it's that simple. also the whole panel of the three guys that send notifications to the kid in the show is a complete misrepresentation of what that process looks like.
