[meggar]

Maybe Boring Co and Square Roots can do some underground vertical farming so we don't keep running out of romaine.

[rohit2412]

Topsoil is needed for plants, which won't grow underground without it. And if you're going to carry soil underground, might as well do it in an above ground building. Or try hydro ponics

[meggar]

I was thinking more like a 10 foot wide hole, 1 mile deep.