What gets wetter the more it dries? Riddles can help illustrate an important concept for economics and science: the use of metaphor to convey ideas that cannot be stated explicitly. Here, Riemann's use potential theory and Dirichlet's Principle clarify the role of metaphor in language, and the nature of discoveries. Part 2 is coming very soon, which will take up Abelian functions and economic discontinuities. Stay tuned!
Transcript available here.