But Twitter is still okay...

Look, a manifestation of my end-of-semester psyche.

Wouldn't it stand to reason that a building that takes up 1/4 of the space and grows crops four layers high would still produce the same amount?

Not to mention, I've seen concept art of repurposed missile silos being converted into hydroponic farms.

I'm curious as to what you mean? Agricultural food sources, regardless of destination, can still be grown hydroponically indoors. Benefits could include greater yield per acre and reduced need for pesticides.

Edit: I'm referring, of course, to the giant warehouse-style farms, not small single-family hobby ones.

Just wait until indoor hydroponics really takes off.