https://www.theguardian.com/environment ... lifestyles.The optimum population of Earth – enough to guarantee the minimal physical ingredients of a decent life to everyone – was 1.5 to 2 billion people rather than the 7 billion who are alive today or the 9 billion expected in 2050, said Ehrlich in an interview with the Guardian.
As an offshoot of this what would you say is the optimal population size for a country? In other words if you could pick a population size that you were responsible for governing what do you think is the best?
I'd throw out 10 million, a Sweden, Czech Republic, Switzerland size nation. Big enough to be able to have your own identity and culture but not so large to have a hard to manage population or the responsibilities that come from being big and powerful.