What Should We Be Worried About?

What should we be worried about? That is the question John Brockman, publisher of Edge.org (“The world’s smartest website”—The Guardian), posed to the planet’s most influential minds. He asked them to disclose something that, for scientific reasons, worries them—particularly scenarios that aren’t on the popular radar yet. Encompassing neuroscience, economics, philosophy, physics, psychology, biology, and more—here are 150 ideas that will revolutionize your understanding of the world.