Here's an excellent observation from a talk I've just been convinced I would have loved to listen to (thanks to Adam for liveblogging it):
"Highly technical people are dictating how we communicate with each other. The least social people are dictating how we interact. They force us to opt-out not opt-in. There's software that kills you internet connections for a set time to allow you to focus. Opt-out is the new opt-in."