Great post, but I disagree with something.

Why would we allow the means of production of necessary things to remain in private hands? That would be an incredible waste of potential. You assume that the economy should continue to exist, that money should continue to exist. Why?

Just imagine that humanity got together and built all the production facilities, for everything from food and water to electronics and clothes, that it needed in order to satisfy the needs of every human, not just every human who could afford to pay for it. No thought to cost. It's possible simply because we have the materials and know-how to get it done. We don't need to pay each other with made up currencies just to get stuff built, because we're one human family.

Automation should free us, not impoverish us.