*** Once we have determined the level of benefits that we can reasonably promise, we must ensure that we will have the real resources in the future to fulfill those promises. When we evaluate our ability to meet those promises, focusing solely on the solvency of the financial plan is, in my judgment, a mistake.
Focusing on solvency within the Social Security system, without regard to the broader macroeconomic picture, does not ensure that the real resources to fulfill our commitments will be  1  Additionally, we could borrow from abroad, which would build up the capital stock.