Humans are usually pretty good at recognising when they get things wrong, but artificial intelligence systems are not. According to a new study, AI generally suffers from inherent limitations due to a ...

A heterological word is one that does not describe itself. Does "heterological" describe itself?

In the rarefied sphere of classical mechanics, more can sometimes be elegantly less. In a paper that will be published March 1 in the proceedings of the Royal Society, two engineers at the Viterbi ...

Editor’s Note: Published in 1957, this article comes from Martin Gardner’s legendary Scientific American column Mathematical Games. Read more in our special digital issue, Fun and Games. A paradox is ...