Imagine a future when earth’s inhabitants are not humans, but cyborgs—robotlike beings with both biological and mechanical components. With exosuits for added strength, cybernetic arms and legs, surgically-implanted earbuds for advanced hearing, bionic eyes for X-ray and infrared vision, and digitally-enhanced brains, these “superbots” think and act at lightning speed. Nanobots inside their bodies work continually to maintain and repair organs and tissues. Equally impressive are their “organic parts,” which have been genetically engineered for health.