There's a second Avatar movie coming out, so I invited super-fan Jasper Cartwright to refresh me on the rules of this hit world. We talk about gravity's effects on biology, the wonders of Unobtanium, and the importance of consistency in worldbuilding. HOSTED by Dr. Moiya McTier (@GoAstroMo), astrophysicist and folklorist GUEST Jasper William Cartwright is a TTRPG game master, producer, creative consultant, and 1/3 of the 3 Black Halflings Podcast. Find him on twitter at @JW_Cartwright or on his website jasperwcartwright.com. MIDBREAK - Subscribe to my new podcast, PALE BLUE POD at palebluepod.com or wherever you get your podcasts - Order my book, THE MILKY WAY: https://www.grandcentralpublishing.com/titles/moiya-mctier/the-milky-way/9781538754153/ - BUY EXOLORE SWAG: store.dftba.com/collections/exolore FIND US ONLINE - patreon: patreon.com/exolorepod - twitter: twitter.com/ExolorePod - instagram: instagram.com/exolorepod - website: exolorepod.com - subreddit: reddit.com/r/ExolorePod CREDITS - Music: https://www.purple-planet.com - Cover art: Stephen J. Reisig, http://stephenjreisig.com/ - Editing: Mischa Stanton, https://www.mischastanton.com/  ABOUT US How would you like to swim in an ocean ruled by matriarchal squid, or fly over a planet as it rotates with a swarm of migrating wasps? No, it's not the latest VR craze (... yet); it's Exolore! Exolore helps you imagine other worlds with the help of facts and science. Every other week, host Dr. Moiya McTier invites experts to build a world from scratch or sits down with a fiction fan to dive deep into their favorite worlds. Every episode will make you laugh, go "huh?" and appreciate how special our world really is. Exolore is a member of Multitude Productions, an independent podcast collective and production studio.