“Tomorrow’s Child,” a story by Ray Bradbury, opens with Peter and Polly Horn traveling to a hospital for the birth of their first child. In their technological utopia, a helicopter conveys them across a sky spangled with rocket ships. An advanced birthing machine awaits, promising to eliminate Polly’s labor. At the moment of truth, however, the hospital’s machine malfunctions. She has delivered a healthy male infant. He weighs seven pounds, eight ounces, and sports a normal nervous system. There’s just one problem: the boy has been delivered into the fourth dimension. From outside the three-dimensional structure of human perception, he appears in the shape of a tiny blue pyramid, with three darting eyes and six wriggling limbs. The obstetrician says that the boy himself apprehends the phenomenal world around him cubically.