The fact that we have cheap greenhouses now and understand how to use them is a game changer.

I imagine it changes the old model of feudal serfdom. A greenhouse makes food production stable and productive no matter the weather.

The people who know animal husbandry will become new warrior class. Mobile, less manual labor required food source that is high in protein and eats useless grass. @BohunkPundit @MogTheUrbanite That being said, modern Americans have almost not useful skills and rely 100% on electricity to survive.

Takes one generation of urban/suburban living to lose all skills.