Conceptual Art and the Acquaintance Principle

The Acquaintance Principle has been the subject of extensive debate in philosophical aesthetics. In one of the most recent developments, it has become popular to claim that some works of conceptual art are counterexamples to it. It is further claimed that this is a genuinely new problem in the sense that it is a problem even for versions of the Acquaintance Principle modified to deal with previous objections. I argue that this is essentially correct; however, the claim as it stands needs some work. I draw attention to, and defend, two assumptions on which the claim rests but which have so far gone unrecognized. I also address an objection that has recently been made to the claim and threatens to raise further complications for it. In doing this, we arrive at a fuller, more robust version of the initial claim.