this post was submitted on 06 Aug 2025
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[–] BlameThePeacock@lemmy.ca 0 points 1 week ago (20 children)

A) is just rediculous, the space required to feed even a suburban block is orders of magnitude more than a greenhouse onsite could provide. It may be able to grow enough herbs, but that's about it.

I'm fine with the rest of the idea.

[–] Sturgist@lemmy.ca 1 points 1 week ago (15 children)

Ground floor is the community grocery, and the next 3-5 floors are a hydroponics farm. It's really not that ridiculous.

[–] BlameThePeacock@lemmy.ca 9 points 1 week ago (5 children)

You could have 5 floors, and it still wouldn't be enough. You could have 30 floors and it wouldn't be enough.

I don't think you understand the scale of farming to human. Even if you're entirely vegetarian it's on the order of 0.5-1 acre per person to grow the required food. That's 20,000-40,000 square feet. Even if hydroponics were involved and cut that by a factor of 10, you'd still be at 2000 square feet per person. A typical grocery store is 25-50,000 square feet, so let's go with the most generous and say 5 floors of 50,000 square feet you could produce enough food for.... 125 people.

The math doesn't math. No reasonable amount of food growth is ever going to be possible inside a city.

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