[dsheets]

It depends on how the problem is defined.

Do private pensions solve the “I hope I have money in old-age” problem better in a fundamental way? No.

Do they solve the “I want to pay more now to have more later” problem better? Probably in most systems.

Do they solve the “what is the fair value of grandpa’s pension this month” problem? Definitely yes.

If you want guarantees, the state can pull tricks to make you believe that the world is static… for a while. Eventually, reality will force the state to price pensions in line with demographics or suffer increasingly severe budget crises.

In the past, your children were your pension. This is a private system. When responsibility for old-age is distributed without accounting for monetary or demographic contribution, politicians can promise the moon. Stop eating the young.

[datadrivenangel]

You're mostly right, but production can only be stored for so long. If a young farmer produces more food than they consume, they can't save that specific food to eat when they retire. Likewise, investing in machinery to increase production later only goes so far without further reinvestment in the form of maintenance.

[dsheets]

This time displacement of value service is exactly why the industry is financialized. Of course, the financialization creates a huge moral hazard and introduces middlemen that take more than they supply in many cases but the near universal demand for wealth preservation for old age is one of the few truly noble pursuits of finance. Now if only pension systems didn’t treat their beneficiaries as contemptible idiots who cannot be allowed to manage their own finances, the rampant corruption might stop.