Is that just a pipe dream? Of course not, otherwise I wouldn't be here talking to you. So in order to build that and make it work, I'm only going to name these things, I'll not go into them, we need a plan, which is we're going to build this as an infrastructure for everybody to use, to solve all of these problems. We're going to make a utility, the utility has to be universal, you can use it everywhere, I'm just giving you little flashes of the technology as we go along. That's a Japanese ATM, the fingerprint template is stored inside the mobile phone. So when you want to draw money out, you put the mobile phone on the ATM, and touch your finger, your fingerprint goes through to the phone, the phone says yes, that's whoever, and the ATM then gives you some money. It has to be a utility that you can use everywhere. It has to be absolutely convenient, that's me going into the pub. All the device on the door of the pub is allowed is, is this person over 18 and not barred from the pub? And so the idea is, you touch your ID card to the door, and if I am allowed in, it shows my picture, if I'm not allowed in, it shows a red cross. It doesn't disclose any other information. It has to have no special gadgets. That can only mean one thing, following on from Ross's statement, which I agree with completely. If it means no special gadgets, it has to run on a mobile phone. That's the only choice we have, we have to make it work on mobile phones. There are 6.6 billion mobile phone subscriptions. My favorite statistic of all time, only 4 billion toothbrushes in the world. That means something, I don't know what. (Laughter) I rely on our futurologists to tell me. It has to be a utility which is extensible. So it has to be something that anybody could build on. Anybody should be able to use this infrastructure, you don't need permissions, licenses, whatever, anyone should be able to write some code to do this.