Proposed by cognitive scholar Douglas Hofstadter, the concept of a “strange loop” involves a paradox that arises when, by moving up or down through a hierarchical system, one finds oneself back at the initial starting point. Examples of such feedback loops in various media include the well known M. C. Escher lithograph Drawing Hands and the novelty song “I’m My Own Grandpa.” Another conceptual example is the liar paradox, which is what? Discuss
Source: The Free Dictionary