If Elon and Vivek are successful in cutting the Federal government as much as they think they can, does it set up a scenario where the Federal government doesn't require the SSA and Medicare dollars going into the general fund. That means there's the opportunity to carve both programs out and privatize them.
Pick an age for cut off to the new private SSA and give folks in between that age and retirement the option of which program they're in. SSA withholding continues for X number of years to build up and those dollars go into a private fund. The Feds continue supporting current and near term retirees but then is out of the retirement business once those folks are dead.
It could become the Sovereign Wealth fund Trump has talked about.
Economically, cures are much less expensive than ongoing treatment of symptoms. This alone could save SS, and Musk is all about this type of approach.