It is fiscal policy to keep inflation at between 1-2% (in New Zealand at least) Various tools are used to keep inflation in this range.
Let's say the average inflation rate is 1.25%
What would happen if a small country (this probably would not work if the US tried it) printed* enough money to push inflation to 2%. Then put that money into a global index fund (and gold as a hedge).
This fund would be earmarked for superannuation, Universal Basic Income (UBI), 'a rainy day', quantative easing during a depression, etc.
In say 50 years the fund could become quite substantial. It could then be used to offset (all?)taxes with the fund's dividends.
What is the obvious flaw in this plan of printing money to finance a long term government fund?
*Not literally print, but you know what I mean.