What? This is just silly. You don't know the difference between hypothetical fantasy and real life, or are you just being hyperbolic?
> Secondly, the principles that underpin this scenario are highly active in the world today
Still, it is irrelevant since I asked for a real world example.
> Not too long ago my neighbor cleaned the carburetor on my lawn mower, and I fixed his router config in exchange
Another contrived example which excludes the entire world. Who made the lawn mower? Who made the router? Literal slaves in a third world country. Surely you are not so ignorant you know this?
> whether Person B can get enough protein from coconuts is entirely irrelevant
It is not irrelevant; it is hilarious you don't know this simple nutritional fact.