WTF is Twitter all about?

Well do you know?? Same for Facebook and all that 'social networking' shite, its beyond me, i suppose a zillion gazillion fifteen yearolds cant be wrong.... no hang on , course they can. Its a sign of the times when internet entrepreneurs can make a pile of money so mind bogglingly high out of adolescent girls desires to say 'Hi, I'm watching telly, do you want to come over and talk about boys' etc. I really couldnt have seen that one coming but then i'm OLD.