The Puzzles mimic the type of cognitive game play we engage in as children, when we first begin associating words with colors, shapes with matching shapes, images and signs with abstract, detached, symbolic meaning. It's a core human skill set—a display of higher functioning and of our unquenchable, evolution-driven need to solve things. But unresolvability is of course one type of resolution. Today, in many different situations (some of which feel quite important), most of our energies seem to go into trying to decide whether something is worth the effort of trying to resolve it or not. What is beyond us? What is worth the effort?