Indeed, you don't have to do everything yourself. But trade is just one way of getting something from others. Another way is simply taking it, with force. In biology ("natural fitness"), as Greg Cochrane puts it, the usual way is "Let George do it, and then eat George."
But trade is just one way of getting something from others.
Yes nice summary of the original point of the entire thread. Money (which is trade, n'est-ce pas?) is just one way of getting something.
And the argument has been can we get more of something by abandoning money. And you and I have pretty much been saying "almost certainly not, what proposal do you have that hasn't already been discredited?"
How much money would it take to engineer biological immortality for at least half of the world's population, within 20 years, with 99% confidence?