awesome schum. >> coo for jessica's activism helped standardized guidelines for practicing ob/gyns inbooks. you can add one to my list. i'm updating my diary, and you can thank me later. >> trevor: thank you so much for that, michael. tristan harris will be joining us on the show to tell us how facebook is making us want to kill each other. don't want to miss it. we love our house, been here for years. yeah. but there's an animal in the attic. (loud drumming) yeah yeah yeah yeah!!!! (animal drumming in distance) (loud drumming) drums! drums! aaaaaahhhh! at least geico makes bundling our home and car insurance easy. we save a lot. aaaaaahhhh! ohhh! (loud drumming) animal! aaaaaahhhh! for bundling made easy, go to geico.com. uh-oh... somewhere out west a lone river does run. it carves and cuts and clears its own path and the work is never done. so follow the lone river, where the agave heart does beat, follow the lone river, if you can stand the heat for you can hear the river calling if there's a freedom that you seek. the same goes if you're thirsty and just want a cold drink. lone ri

awesome schum. >> coo for jessica's activism helped standardized guidelines for practicing ob/gyns in. i'm updating my diary, and you can thank me later. >> trevor: thank you so much for that, michael. tristan harris will be joining us on the show to tell us how facebook is making us want to kill each other. don't want to miss it. here's a good halloween trick. buy a bunch of reese's. (uh huh, there you go) turn off all the lights in your house. (yeah yeah) ( trick or treat!) and then just don't answer the door. not sorry, reese's. ♪ ♪ ♪ you won't admit you love me ♪ ♪ and so, you only tell me ♪ ♪ ♪ perhaps, perhaps, perhaps ♪ ♪ ♪ harris of the center for humane technology. he's here to talk about facebook and whether the social media giant can be both responsible and profitable. tristan. welcome to the show. >> pleasure to be here with you. >> trevor: your face is one i both enjoy seeing but at the same time brings me a lot of sort of ptsd. >> yeah. >> trevor: because you said a lot of things in the documentary where i think a lot of people know you from, the social dilemma. >> yeah.