The human body seems to come equipped with a natural radar for death-inducing situations. For example, the moment you get within about ten feet of a cliff edge, minus guardrail, a certain tension digs into your body. Your back stiffens. Your skin ripples. Your eyes become hyperfocused on every detail of your environment. Your feet feel as though they’re made of rock. It’s as if there were a big, invisible magnet gently pulling your body back to safety.
