In 1975 the world population reached 4 billion people. In 2023 it reached 8 billion
In 1975 the US population was 211 million. Today it is 340 million.
1- we now have more people, more knowledge and more technologies. 2- one important principle that we promote is freedom 3- there seems to be a positive correlation between Government spending and quality of life. (HDI = Human Development Index)
What amount of money per capita should our governments spend? Did someone develop a model of some kind.