I've thought for some time that capitalism as we know it will have to change. Our modern capitalist system requires frontiers for gathering resources and civilization for processing those resources.
But those frontiers are shrinking. You can't just go out and trap furs or mine some silver to make a living. Especially in America, the frontier was our social safety net for a long time, and now it's mostly gone.
That doesn't mean that socialism/communism has won. It means, as the article suggests, that we're moving into a new age where we have to make adjustments in how we manage civilization/
Let's hope we get it right...