Infinity Day has us visiting Perth, Australia, and the Elizabeth Quay Bridge. From this aerial view, the bridge closely resembles a tilted ∞, the common symbol for infinity first popularized in a 17th-century mathematical text. We recognize this unofficial holiday every August 8, because the number 8 resembles the infinity symbol—at least when tipped on its side—and the eighth day of the eighth month is an infinitely superior day to celebrate the infinite.
