interactions. do you think that plays a role? >> i think it's no coincidence that these kinds of mental health issues are coming up in this age where technology is pulling away the kind of normal social interaction we have. and that's true on social media, where i think people think they're getting social connection out of scrolling their instagram feed but haven't talked to a live person or made a real social connection. it's also all kinds of other tech. we don't talk to our cab driver and explain where we're going, because we've punched it into uber. we don't talk to the checkout clerk. we scan it on our own. research suggests it's those simple social connections, talking to the barista at the coffee shop or the person on the street, that can bump up well-being much more than we forecast. >> i think about the experience of dating. you used to go to a bar, you meet someone, and now, of course, you look at an app. >> that's correct. >> and evaluate somebody on very superficial criteria and you get evaluated and that can't be good for your sense of self worth.