So we're gonna have more old people to take care of in future.In terms of spending, we can spend more, less, or the same amount per person.

1) Realistically, we're not able to spend more per person without taking on a bucketload of debt, so we'd be kicking a different can down the road - effectively taking money from our kids to pay for our parents and ourselves. We could do it, but we'd be breaking budget rules and really just fucking the country over even more.

2) If we spend the same amount per person, then we'd need to bring in more revenue to cover a bigger overall spend on welfare. This could be increasing productivity (through education, automation, etc), getting more businesses to move here, or bringing in workers who contribute more to the economy than they pay out. I'm no economist but it seems to me that all three of these go hand in hand. Investing in education & infrastructure would help here, as would encouraging the diaspora to move back.

Bringing in a shitload of young people doesn't solve the problem, just delays it - but then again there's nothing stopping us doing it indefinitely (also, more Polish and Brazilian women is a good thing).

3) We could spend less on welfare for old folks - raising the retirement age seems like a way to share the burden between everyone. With life expectancy (and quality of life in old age) rising, I think it's fair.

You could just cut spending now, but that would send thousands out begging and just generally be cruel. It's also the kinda thing that only FG would do - make of that what you will.

Overall, the best option seems to be just to bring in more money. Maybe investing into a sovereign wealth fund would be a good idea, but i don't know where the money for that would come from.