Adult Sheldon (VO) in “Unfinished Business”

In physics, potential energy is a fascinating topic. Objects like springs store energy when they're coiled, waiting to unleash their full potential and soar to the heavens. Would you look at me go! Even in toy form, I'm shooting for the stars. While the potential energy of an object can be measured in absolutes, human potential remains more elusive. Sometimes, people seem to have all the potential in the world, but for some reason stay stuck to the ground.