The American journalist Jeff Jarvis has come by my house to interview me. Here I am, face to face with one of the most incisive technology journalists of today - via his blog BuzzMachine - and he is asking me what I think of the internet. I find the idea mind-boggling, to say the least; it would have been unthinkable a decade ago, when Google was a fledgling search engine and the internet a mystery to most of us.