Sex toy book parties! Penis transplants! Decomposition labs! These are just a few of the places the intrepid, New York Times bestselling author Mary Roach takes us in hilarious, curiosity-driven books like Bonk:: The Curious Science of Sex and her latest, Grunt: The Curious Science of Humans at War. It's some of the best, most engaging science writing out there. On this week's episode of Think Again–a Big Think Podcast, Mary and host Jason Gots discuss some of the above, then enter more the more abstract territory of dark matter, Nietzche's atheism, and emotional connection with artificial intelligence. It's a weird and wonderful talk adventure. Surprise discussion clips in this episode: Philosopher Simon Critchley on Nietzsche, Physicist Lisa Randall on Dark Matter, Sherry Turkle on Emotions and AILearn more about your ad choices. Visit megaphone.fm/adchoices