>>12636> ~7-10 million people per continentWhy this number? For reference, this is about the population of Sweden (9.8 mil).
Currently there are roughly 1 billion people per continent (of course not equally distributed), to get to your number you would reduce 100-fold. That means say, NYC becomes a city of 87k, about its 1805 level. If you redistributed people so that North America had the same number of people as other continents (currently it has about a third as much as others). Many American communities in Midwest disappear outright. Oceania would be barely affected (already only 30 mil).
What happens to fugitives who go innawoods and breed unchecked? Will you employ a huge army of manhunters (it will be even easier to hide now that there's so much uninhabited wilderness)?
What happens to a rogue continent that decides to remove the restriction and outbreed everyone else?
>positive eugenics program worldwide where the desirable genes are rewarded and the mediocre ignored but not punishedIf your concern is genes, and since you have such a restricted population, I think it should be society's duty to support everyone regardless of their defect. If society screens out unacceptable babies, this implies that everyone who was allowed to be born is desired. Therefore they have responsibility to care for them.
>positive eugenics program worldwide where the desirable genes are rewarded and the mediocre ignored but not punishedHow are genes scored as desirable or not?
>no more non-vital cities, no more polluting factoriesI don't think pollution matters at this point. You're slashing world pop 100-fold: Even if you switch to 10x more polluting factories than today's average (which is dragged down by shitty Chinese, Indian and African factories) you still pollute 10x less. You'll need strong a strong industry to support the automation anyway.
>mandatory phd education for every personI recommend you get a PhD yourself before you talk about making it mandatory. A PhD is a research degree. If everyone's job is to publish papers, who will run the factories and enforce the population program?
>more or less gender equality while maintaining gender rolesThese are mutually exclusive..
>spaceflightWith 10 mil per continent, 70 mil in the world? Recall that during the space race (1950-1970), the US had 150-200 mil, and USSR had 180-240 mil. How will 10 mil be enough? You don't even have any career engineers, everyone's a PhD.
>internet is a human rightWhy is this necessary? Why is the concept of human rights necessary at all? In you ideal society, sounds like everyone would be well to do, affluent, own the land they live on, have the means to defend it by force. There shouldn't be any bums in the streets who can't afford internet and must have it given to them by the state. Everyone is engaged in intense training, research or other technical occupation because the space program needs every last man and woman working day and night.
The concept of human rights exists as a hard limit on how much a society can oppress its underclass. In your world, there should be no underclass. The "rights" that you would need to guarantee would be things like political power, legacy, title, high office - things which some people would actually not have. "Right to internet" in such a society sounds as useless as "right to learn how to walk" in our world.