He's on to something here. Economic growth is the ONLY thing that can keep the thing from collapsing (and that happens in about 12 years when outlays exceed income, not when the non-existent "trust" fund is exhausted). Somehow 2 people have to become as productive as 5 people now.
"when the non-existent "trust" fund is exhausted"
Yes, the trust fund is a bunch of paper "IOU's" left when the government grabbed and spent the money. The real funding are the day to day payroll deductions from present workers. I guess when we are old and deductions don't keep up, we can eat the IOU papers for food or heat our homes with them.