The problem is that income does not get you by. It's a totally abstract concept and cannot sustain a physical being. Maybe an income of potatoes and butter coul

The problem is that income does not get you by. It's a totally abstract concept and cannot sustain a physical being. Maybe an income of potatoes and butter could sustain you. An income of digital credits only gives you some accounting leverage to access goods in a public market (which may or may not exist). If there are no doctors, your income won't ensure you receive treatment when you need it.