Increasingly you win not by fighting to get control of a scarce resource, but by having new ideas and building new things.
This is insane - nothing has fundamentally changed that makes scarcity no longer a primary driver for competition. The metrics for all startups etc... are scarce resources, namely cash and labor. Even if you assume that there is a glut of startup cash, the process proves that VC/Angel dollars are still scarce. Maybe that is a narrow interpretation of that phrase though.
Maybe he means that instead of "capturing" real goods like real estate, or oil or something like that which would be more apt for the "scarcity" title, the economy is leaning towards "knowledge" jobs. This just shows me how extremely disconnected from reality PG is.
The reality is that the world that he lives in (technology dev/VC etc...) rides on top of the cutthroat international game of resource dominance that he ignores. The real estate, energy and hardware resources that underlie the technology market are absolutely fixed pie games (when analyzed from production/consumption standpoint) where the most ruthless win.
Very disappointing that one of the start-up world's "thought leaders" has his head so high in the clouds he can't see his foundations.