Erik Hoel opens his recent book, The World Behind the World: Consciousness, Free Will, and the Limits of Science 1, with a review of “humanity’s two perspectives on the world.” I learned of Hoel’s ...

At first glance, the problem seems ridiculously simple. And yet experts have been searching for a solution in vain for decades. According to mathematician Jeffrey Lagarias, number theorist Shizuo ...

Thousands of notoriously difficult problems in computer science are actually the same problem in disguise If you're enjoying this article, consider supporting our award-winning journalism by ...