In 1970, roboticist Masahiro Mori wrote an essay that said the closer robots come to lifelike, the more they unsettle humans. His theory became the Uncanny Valley, and science has been evaluating it – and what makes something creepy - in recent years. Learn all about it with Josh and Chuck in this classic episode.See omnystudio.com/listener for privacy information.

One of the all-stars of the hobby world is collecting baseball cards. Over time it’s gone from a kids’ hobby to a major investment vehicle, complete with its own bubble that recently burst. But at the heart of it is something both engrossing and endearing.See omnystudio.com/listener for privacy information.

You know when you read a word over and over it starts to lose its meaning? There’s a term for that and why it happens is fascinating.See omnystudio.com/listener for privacy information.

Floyd Collins was a natural-born caver who met a terrible fate, becoming stuck underground where no one could get him loose. His unlucky, slowly unfolding plight also turned out to be one of the first national media sensations of the 20th century.See omnystudio.com/listener for privacy information.

Anyone who knows anything about Jean-Claude Van Damme knows he played a French legionnaire in the movies. He was just one of many actors to star in films that romanticized this mercenary force. Check out the details in this classic episode with Josh and Chuck.See omnystudio.com/listener for privacy information.