Shop Amazon for the holidays and enjoy comedian and musician Mike Phirman (@phirm) as he joins the crew to talk about kidney stones and Jesse's trip to urgent care, Mike's iodine allergy, the millenial malady of text neck, a man who can sort of hear wifi, the sound of Comet 67P and Philae, Hard 'n' Phirm's ode to the numerical value pi, Chicken Monkey Duck, Build-a-Song, Trace Elements, the bluegrass mashup Rodeohead, more Vomit Comet talk, why we need to be done with fossil fuels by 2100, the link between gut bacteria and mental health, a vaginal Crocodile Mile and the clearest-ever image of planetary formation.