[nradov]

We kind of can eat money. Agriculture is already highly automated, and will become even more so as labor costs increase. For example strawberries are currently picked by hand because the fruit is so fragile, but picking robots are in advanced stages of development and will probably be widely deployed within a few decades.

A reduced supply of younger workers will also tend to increase retirement ages and reduce age discrimination. For example, a healthy 75 year old can still do a lot of nursing tasks. He might no longer be physically capable of lifting a bedridden patient but he can administer medications, record vital signs, change dressings, etc.

[ta0987]

I mean, sure, kind of. But indirectly. We can eat improved technology which we might be able to buy some of with money.

increase retirement ages

Yeah, that's one of the negative consequences of the demographic collapse. Not that old people who can still work are owed a vacation funded by the young, but the world isn't exactly fair in handing out pain, and not everyone who can't retire will be deserving of not being able to retire.

reduce age discrimination

Maybe. Old people too broke to retire don't have tremendous leverage in the labor market, and historically market forces don't tend to fix discrimination, see, e.g. Blacks in the US.