Earlier quoted context omitted.
Or, we simply wait out the next few centuries. Reproduction rates in many developed countries have dipped below replacement. Maybe the total world population will decrease in our time.
Except now people expect retirement and pensions... Not something people back then counted on when populations of people working declined...
The Great Aging is underway, the EU last year had more deaths than births and will for the foreseable future, Japan has been there for a little while and China's working age population is already in decline. Africa, the Middle East/India and parts of South America are the only places experiencing actual population growth, when immigration is not taken into the equation. With Demographics and Automation deflation is the likely outcome. The Central Banks are trying all they can to prevent this from happening in the near term by spending Trillions of dollars to prop up economies and drive interest rates lower to eek out some inflation. They seem not to care whether growth is actual demand growth or simply a mirage in terms of inflation. The central banks are doubling down their efforts and will be even more accomodative in the next few years when the growth they continue to state is right around the corner never materializes.
Unfortunately I do not see a way out of this without the developing nations taking care of themselves.