What has attracted me most to libertarianism – next to the Non-Aggression Principle – is its attitude towards our knowledge which can be described as epistemologically modest. Epistemology is a branch of philosophy that is concerned with our knowledge: how do we know what we know, what is the nature of our knowledge, what is its scope, and what is justified belief? Libertarianism is modest in the sense that it promotes an awareness of how little we know about the social forces in our society, and what the particular consequences are when certain social forces are at play.

In ‘The Pretense of Knowledge’ (1974), Friedrich Hayek had given an excellent account on the libertarian epistemological modesty. He writes that when policy makers are epistemologically immodest – meaning that they unjustly believe that they truly understand the social world to the extent that they can plan or direct certain…