The strongest argument for the continuation of unprecedented prosperity is that strategic capital is certain to grow as knowledge expands and as increasing numbers of people are educated.
This fact is apparent from crude numbers. More than half of the scientists ever trained are alive today. An enormous fraction of the technical literature and of the digital content in the world’s databases has been created in the past two or three decades. If these categories of strategic capital can double in the space of a few decades, then it is very plausible that physical and financial capital will keep pace.
The prevalence of networks is also certain to build wealth—the number of nodes in the global network grows with the number of connected people, institutions, Internet domains, and telephone numbers. An algorithm beloved by communications theorists is called “Metcalfe’s Law.” It asserts that the value of a network increases as the square of the number of nodes. If so, each time the number of nodes doubles, the value of the global network will quadruple. In passing, I wonder whether I am one node or several: I have several somewhat separated professional affiliations, web sites, phone numbers, domiciles, and personal computers and at any time can be accessed through many of these. I even send e-mail to myself for a variety of practical reasons. This phenomenon suggests that the number of nodes in the network has the potential to exceed the population itself. In short, the combinatorial possibilities are practically infinite, and at any one time there will be a significant number that afford value-creating opportunities.
Networks enable the framing of new options. A larger economy (or a global economy) with more components adds value, as long as the components can connect to each other. In this sense a macroeconomy is more than the sum of the economic performance of the firms and the individuals within it; it also includes the strategic value of the potential new interactions among these members. (This observation is distinct from the more common observation that large markets, such as the United States, are advantaged by economies of scale.) Farmers in obscure valleys in the Balkans were poorly positioned to frame options, and their thinking seldom went beyond the next valley.
Stagnation was the result. With the Internet and basic literacy, they have new avenues for value creation. The third positive factor supporting continuing prosperity is the increasing sophistication of markets in managing and distributing risk. Risk and value, although incompletely understood, are nonetheless understood today with a far higher degree of conceptual sophistication and are supported by more extensive and accessible databases, than was the case even two decades ago. Both factors make value creation more predictable and reliable and less intuitive than ever before.