When I think of my goals for the future, my mind runs wild with ideas. As a young child, I wrote in my preschool journal that I wanted to be a firetruck. Slowly, my goals became more realistic—I wanted to be a chef, a teacher, a lawyer.

The other day, my friends and I brainstormed the next big thing. The next Sillybandz, the next Fruit Ninja, the next hoverboard or Flappy Bird or air fryer. To no one’s surprise, though, we couldn’t think of anything. “Everything already exists,” we said.