Will “grow your own” always be impractical?

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I've come down with some kind of stomach bug. I've been feeling horrible all day, but I am hoping that whatever this is will be over quickly.

I have also been thinking a lot about this Twitter thread today. While it's true that conventional gardening techniques will not provide the yield required to feed ourselves and our families, I do wonder if the increased yield from hydroponics, and the ability to grow year round, will make this feasible?