Sparky is an ouroboros (“tail devourer”). The oldest known image of an ouroboros depicts the serpent as a circle, a trivial closed loop that mathematicians call an unknot. Sparky, in contrast, is a trefoil knot, the simplest non-trivial mathematical knot. He understands firsthand that entanglements are a natural part of the unending cycles of birth, death, and renewal that he symbolizes.