When a farmer leaves some unharvested crops in the field, they are not "wasted." Real waste would be found in efforts to use up every last physical resource, no matter how costly those efforts might be.
We don’t let just anyone repair our homes or perform surgery. So why do we let everyone vote, and, theoretically, let just anyone rule? Jason Brennan’s recommendation is epistocracy: the rule of the knowledgeable.
Proponents of socialized medicine assert that markets cannot be trusted with healthcare due to "market failure." But the assumed "failures" of health markets are not improved by socializing healthcare.
The government accepts no legal obligation to provide specified law enforcement services in exchange for the taxes it forcibly extracts from the citizenry. A clearly defined and voluntarily accepted reciprocal agreement between the government and the citizens has never existed.
Keynes's Malthusianism indicates that he had a defective understanding of the division of labor and the law of returns. Beyond that, his population policies reveal the totalitarianism inherent in the Keynesian vision.