In order to expand production and increase productivity — and thus increase the standard of living — it is necessary to use capital. And so it makes sense to pay interest on capital lent, so as to encourage the maintenance and production of capital for the future.
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.
In It's a Wonderful Life, George Bailey was right to oppose Old Man Potter. Potter's fondness for the draft board and his attempt to use the DA to crush his adversary shows Potter had little regard for truly voluntary exchange.