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[-] Krauerking@lemy.lol 2 points 8 months ago

Sorry to sorta necro this but I had a couple of his numbers floating in my head and I had to do the math.

He suggested that you could feed a city block with only 2 floors of a skyscraper which is already an insane ask but whatever.

But that means for a city like Philadelphia, you would need a total of around 16,000 buildings with 2 floors each dedicated to farming which widespreads your farmers. Or if you decide to dedicate each building to farming only you still need 322 skyscrapers each 100 floors high to feed the city.

Which means water pumps and infrastructure to support all that water for 322 buildings which is about the current number of high rises and skyscrapers in Philadelphia combined.

You need to convert your entire city to food production just to feed the city that is just existing to feed itself.

My God this really isn't the win they think it is. Technology will certainly save us but man I don't see it in the pie in the sky scifi answers but something boring like protein manipulation in yeast cultures.

[-] frezik@midwest.social 2 points 8 months ago

Not surprised at all. Beyond that, I suspect even two floors is already too many to effectively power the thing with solar on the roof of the same building. Even converting solar to electricity to a narrow spectrum of light at 100% efficiency for the entire thing wouldn't get you there.

this post was submitted on 27 Feb 2024
458 points (96.0% liked)

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