Circadian Loops is a series of wall sculptures characterized by twisting loops of wood, and are inspired by notions of "circadian rhythms" -- biological clocks that operate in roughly 24 hour cycles as "adaptations to life on a rotating world". As the series evolved, Hopkins began to incorporate colored fabric and plastic, which, in turn, suggested figurative forms in gymnast-like movement. Hopkins prefers to dramatize their interactive energy by installing them in scattered clusters on the wall -- creating, what he terms, "a parallel universe of circadian rhythms".