persuasive technology, BJ Fog's contribution to the problem that we're all faced with today, which is that were addicted to our devices. So how does that work? Well, basically his theory has three parts where you have motivation, you have ability, and there's a trigger. And if you're above a certain threshold, you have the right motivation and the right ability, that trigger will trigger a behavior. If you don't have enough motivation, or if you don't have enough skill set, then that trigger won't work. Or if you have the motivation in the skill set, and the trigger doesn't happen, then you'll never trip into the behavior.

We’ve got lots of telephones already. Can’t you think of anything else for your birthday? Something very special?