“Consciousness is tied to corporeality and temporality: I experience myself as existing with a body over time,” the German psychologist Marc Wittman wrote in his insightful investigation of the psychology of time. “Do you sometimes want to wake up to the singularity we once were?” poet Marie Howe asked in the opening lines of her stunning tribute to Stephen Hawking — a question that cuts to the heart of our uneasy embodied temporality. How do creatures with lifespans that rarely…