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The trouble is, math is sort of broken. It's been broken since 1931, when the logician Kurt Gödel published his famous incompleteness theorems. They showed that in any mathematical system, there are certain questions that cannot be answered. They're not really difficult — they're unknowable. Mathematicians learned that their ability to understand the universe was fundamentally limited. Gödel and another mathematician named Paul Cohen found an example: the continuum hypothesis. The continuum hypothesis goes like this: Mathematicians already know that there are infinities of different sizes. For instance, there are infinitely many integers (numbers like 1, 2, 3, 4, 5...

A U.S.-Japanese interceptor successfully shot down a test ballistic missile over Hawaii. It was the second-ever success for the joint missile defense program, and a stunning technological accomplishment. Also, the whole thing was captured on video. The interceptor, called the Standard Missile-3 Block IIA, destroys targets with sheer force, rather than an explosive warhead, and according to its manufacturer Raytheon, the interceptor's "kill vehicle" (a projectile) rams into a ballistic missile with the force of a 10-ton truck traveling 600 mph (965 km/h). But does any of this make the U.S. (or Japan) any safer? Are American cities less likely...

-snip- Alessandro Strumia, the physicist in question and a professor at Pisa University in Italy, gave his presentation to a crowd at the European Organization for Nuclear Research (CERN), one of the word's most important nuclear physics organizations. The topic of the day was gender in physics, and the crowd was mostly composed of women, according to The Guardian. Over the course of several slides of his presentation, which are available online, Strumia laid out an IQ-based argument for disparities between men and women in physics. "Physics graduates have top IQ," he wrote. "It's needed." He pointed to a study that...