Our universe appears to be bound by a finite set of laws, yet we often talk about things that go on for an eternity. “Infinity” is a strange idea. But it’s crucial if you want to understand anything from philosophy to mathematics. Here’s why.
Arthur Chu returns to television today, the Jeopardy champion with the unconventional playing style who’s either hacking or ruining one of America’s most popular game shows. But Chu’s supposedly unorthodox methods are not all that radical: IBM’s Watson uses those same tactics to beat humans.