The Unknown Zone Official

“Overpopulation” is such an easy thing to brainwash people on. I used to believe this until somebody pointed out that you could double the living space of my hometown without developing more land by hypothetically adding one extra floor per building. Do this across the board and you’ve already ended homelessness- but thats not even considering all the millions of vacant buildings just lying around that could be used for housing (fill those up first).

Theres also a more sci-fi concept for incredibly tall, thick skyscrapers and artificial layered mountains that, to my knowledge, are completely within the realm of physical possibility and would house tens of thousands of people. Blueprints were drawn up in the 90s in a few different countries, like Sky City 100 in Japan

And the Ultima Tower in San Francisco

The designs are gathering dust and need proof-of-concept but the basic idea is contemporary: If youre a high-technology civilization and you have too many people, build UP, or DOWN, but never OUT. Then surround the towers with farming space and preserve the rest of nature. You could triple the global population if you wanted to, and not only would you be able to give all of those people the living space of a modest house, but youd actually vastly increase food production (which is already enough to feed all those people and can be doubled like OP said)

And if you still prefer living out in the country? Nobodys saying you can’t! It would barely affect current living accommodations, it would just make things easier for the current homeless and you wouldnt need to pay as much for food.

Or if you wanna look at something that we can 100% do now, literally just combine agriculture and architecture.

These are just concept art pieces of Forest Cities, but there are legitimate plans to begin building living spaces that use plants in their designs. Again, towers are more environmentally friendly than individual housing because you get vastly more living space per acre and if those buildings double as crop/oxygen production then youre basically supercharging nature by “overpopulating” humans.