Over the last decade, many of the young innovators we've selected for this list have gone on to be spectacularly successful. Previous winners include Larry Page and Sergey Brin, the cofounders of Google; Mark Zuckerberg, the cofounder of Facebook; and Jonathan Ive, the chief designer at Apple.
This year's winners are employing innovative methods to treat disease, to fight online harassment, and to create the next big battery breakthrough. You'll find people using AI to better understand neurological disorders and to make cities more livable.