On The Debrief - Dane and Lucy speak to the author of a book Lucy can't put down, Rat City. It's about an American scientist that conducted an experiment in the 1950's by building rat colonies to research overcrowding and population booms. We hear what hap pens when rat colonies reach the threshold of overcrowding and whether it is relatable to human life, finding out which cities suffer from this kind of overpopulation. Plus, Inzy has the Week in Review - and do you know how much 20 Undecillions is?   See omnystudio.com/listener for privacy information.