response to the idea that they're an accelerant. you and i might not like each other or might get into words if i see you on the street or something. but i'm not going to have you in my face every day of the week or whatever just because i'm on the street. facebook recognizes that -- in the past at least recognizes that when you come up in my feed i have a response, whether that's a positive or negative response, i'm responding to it a lot more. and historically it's been good for facebook when i have that response when i come back to the feed. so i think as far as them saying, you know, society has its own problems, that's absolutely correct. but as far as like how much facebook accelerates some of these different types of feuds and puts us in each other's faces even more, that's something they can't really defend against because that's the whole point of facebook, to bring us together whether we like it or not. >> but also to that analogy that you said, if you get into an argument or whatever, that argument happens on the street. it's not spread around the world