The SSA holds trillions of dollars of US govt bonds.
I’m sure folks would prefer it being in BTC or fiat etc....
Such is life.
They hold Billions in IOU’s so to speak to go to the treasury with when they need money.
SS is not the real problem funding wise, it is Health Care Costs that are killing us.
We take in about $450 Billion on Medicare taxes, but we spend $2.5 Trillion on spending. That cannot continue. A good part of that is for Medicaid. The government pays 85% of Medicaid and states 15%.
So what happens to Medicaid if the Feds can no longer pay, the states cannot pay it. So realistically you might see all Medicaid spending at the state level slashed 85%. This is one of the reasons we are closing in on $40 Trillion in Debt.