Edit: grammar
Edit: grammar
The only way people would recieve nothing is if both the trust fund was empty and there were no current SS revenues (which would mean no labor, including self-employment, income.)
So, yeah, that's possible if capital captures 100% of value, but that's both extraordinarily unlikely and has a rather trivial policy fix if things ever change so that it no longer seems improbable.
If the trust fund is exhausted (which the population curve does say something about), beneficiaries don't get nothing, they get benefits limited by current SS revenue.
There is no projection i am aware of under which people working today would not get a majority of their benefits.
[1]https://www.usatoday.com/story/money/personalfinance/retirem...