Loch Screen

A global team of scientists plans to scour the icy depths of Loch Ness next month using environmental DNA (eDNA) in an experiment that may discover whether Scotland’s fabled monster really does, or did, exist. Whenever a creature moves through its environment, it leaves behind tiny fragments of DNA from skin, scales, feathers, fur, faeces and urine. This story has really left a mark on Jeff and Anthony.  More Details/Download MP3 →

Alchemical Intelligence

Ali Rahimi, a researcher in artificial intelligence (AI) at Google, took a swipe at his field last December—and received a 40-second ovation for it. Speaking at an AI conference, Rahimi charged that machine learning algorithms, in which computers learn through trial and error, have become a form of “alchemy.” Researchers, he said, do not know why some algorithms work and others don’t. Without deep understanding of the basic tools needed to build and train new algorithms, he says, researchers creating AIs resort to hearsay, like medieval alchemists. Jeff and Anthony are ready for the 24k gold robots.  More Details/Download MP3 →