Now, that's the political implications. I actually think there's a layer of implications to all this research below that. We live in a culture where people feel really increasingly vulnerable to all sorts of addictions, whether it's to their smartphones or to shopping or to eating. Before these talks began — you guys know this — we were told we weren't allowed to have our smartphones on, and I have to say, a lot of you looked an awful lot like addicts who were told their dealer was going to be unavailable for the next couple of hours. (Laughter) A lot of us feel like that, and it might sound weird to say, I've been talking about how disconnection is a major driver of addiction and weird to say it's growing, because you think we're the most connected society that's ever been, surely. But I increasingly began to think that the connections we have or think we have, are like a kind of parody of human connection. If you have a crisis in your life, you'll notice something. It won't be your Twitter followers who come to sit with you. It won't be your Facebook friends who help you turn it round. It'll be your flesh and blood friends who you have deep and nuanced and textured, face-to-face relationships with, and there's a study I learned about from Bill McKibben, the environmental writer, that I think tells us a lot about this. It looked at the number of close friends the average American believes they can call on in a crisis. That number has been declining steadily since the 1950s. The amount of floor space an individual has in their home has been steadily increasing, and I think that's like a metaphor for the choice we've made as a culture. We've traded floorspace for friends, we've traded stuff for connections, and the result is we are one of the loneliest societies there has ever been. And Bruce Alexander, the guy who did the Rat Park experiment, says, we talk all the time in addiction about individual recovery, and it's right to talk about that, but we need to talk much more about social recovery. Something's gone wrong with us, not just with individuals but as a group, and we've created a society where, for a lot of us, life looks a whole lot more like that isolated cage and a whole lot less like Rat Park.