Robotics and computer vision perhaps?

There's no doubt that industrial ag makes it possible to feed the world. But 10 acres can feed a neighborhood and we have plenty of spare labor. 19th century industrial scale was super labor intensive compared to today.

Just as you might have a mixture of crops, why not have a mixture of methods? What if you had to do 10 hours a week at the "unemployment farm" to qualify for unemployment benefits?

I don't imagine it would put any dent in the need for giant ag producers. But it could fuel a lot of experimentation.