But there's another question that obviously this graph poses, which is, okay, we've gone through two decades — does anything distinguish the third? And what I'm going to argue is that indeed something does distinguish the third, and it maps exactly on to the kind of Porter-Henderson logic that we've been talking about. And that is, about data. If we go back to around 2000, a lot of people were talking about the information revolution, and it was indeed true that the world's stock of data was growing, indeed growing quite fast. but it was still at that point overwhelmingly analog. We go forward to 2007, not only had the world's stock of data exploded, but there'd been this massive substitution of digital for analog. And more important even than that, if you look more carefully at this graph, what you will observe is that about a half of that digital data is information that has an I.P. address. It's on a server or it's on a P.C. But having an I.P. address means that it can be connected to any other data that has an I.P. address. It means it becomes possible to put together half of the world's knowledge in order to see patterns, an entirely new thing. If we run the numbers forward to today, it probably looks something like this. We're not really sure. If we run the numbers forward to 2020, we of course have an exact number, courtesy of IDC. It's curious that the future is so much more predictable than the present. And what it implies is a hundredfold multiplication in the stock of information that is connected via an I.P. address. Now, if the number of connections that we can make is proportional to the number of pairs of data points, a hundredfold multiplication in the quantity of data is a ten-thousandfold multiplication in the number of patterns that we can see in that data, this just in the last 10 or 11 years. This, I would submit, is a sea change, a profound change in the economics of the world that we live in.