I would say that their recommendation algorithm and speed of delivering content is so good that it's almost dangerously addicting. I can't trust myself to have

I would say that their recommendation algorithm and speed of delivering content is so good that it's almost dangerously addicting. I can't trust myself to have the app installed on my phone because I'll scroll it endlessly. I wouldn't be surprised if you could measurably impact the behavior of American teenagers with some clever content weighting... though one might be able to say the same of Facebook with the middle-aged. The psychological profiling that can be done with the data is likely somewhat scary, and the feds are going to be doubly terrified considering Beijing is ingesting all that data. The latter is probably the primary motivator of a ban.