A couple acres of pasture will, using grass, turn solar energy into carbohydrates, which will power a donkey -- no rare earths or complicated supply chains need

A couple acres of pasture will, using grass, turn solar energy into carbohydrates, which will power a donkey -- no rare earths or complicated supply chains needed. With enough donkeys, your transportation even becomes self-replicating -- so much for gigafactories. I don't understand why the worse technology won here. Pack animals are a much better solution if you really want to be prepared. They even do better in the rugged mountains from which you will inevitably have to snipe at the federales with your jezail. Think about it.