"That headline makes quite a statement. But it’s true. The stock of so-called “financial capital,” or wealth — all the financial assets out there, which are ultimately claims on real capital — represents only the most tenuous long-term approximation of what our real capital is worth.
Certainly true: the stock (total dollar value) of “financial capital” goes up (in fits, starts, and reverses) over the decades as real capital is accumulated. But beyond that rough, big-picture relationship, the total value of financial assets tells us very little about the total value of real assets.