Episode 348: The Science Fiction of C.S. Lewis with Cosmologist Dr. Luke Barnes - Part 1

In the opening chapter of the Book of Isaiah, the LORD calls the heavens and earth to witness a remarkable but tragic thing. Planets and stars and all the heavenly hosts, which do not have ears, will listen and obey their Creator, but we who do have hears fail to hear or understand. Even oxen and pack animals have more sense than we do, according to what God says through the prophet. In order to circumvent our sinfulness, Jesus often used parables stories to get His audience's attention.  And to this day, Jesus's parallels are the most well-known stories in the world. From the Prodigal Son, to the Good Samaritan, Jesus tells us of the kingdom of God and of His mercy and grace toward sinners. C.S. Lewis likewise believed stories were perfectly suited to convey spiritual and theological truths. Lewis used stories to get past our analytical "watchful dragons" of bias, skepticism, and false beliefs we might harbor about God, lessons and truths we might miss if spoken directly to us as an object moral lesson. This week and next on the Profile, we have a delightful rambling chat about Lewis's science fiction with author, budding philologist, cosmologist and C.S. Lewis enthusiast, Dr. Luke Barnes. We hope the conversation will inspire you to have likewise enjoyable and meaningful conversations, too, as well as inspire you to use words wisely! Luke A. Barnes is a theoretical astrophysicist, cosmologist, and postdoctoral researcher at Western Sydney University. "He received his PhD in Astronomy from the University of Cambridge in 2009.   He is a John Templeton Fellow. He has published papers in the fields of galaxy formation and the fine-tuning of the Universe for life. He is the author, with Geraint Lewis, of A Fortunate Universe: Life in a Finely Tuned Cosmos published by Cambridge University Press. He has also published papers on the philosophy of science, and regularly engages in public outreach through public speaking, articles in the popular press, and social media. He has modeled galaxy formation in a cosmological context with supercomputer simulations, and connected those simulations to observations with modeling of radiative transfer (particularly Lyman alpha emission and absorption) and realistic models of IFU observations.He has investigated the fine-tuning of the universe for intelligent life, modeling the effect of the cosmological constant on galaxy formation and the effect of alternative nuclear physics on stars. He has contributed to the philosophy of science by considering the challenges of testing multiverse theories using probability theory." Daniel and Luke's co-authored profile on Scientism. https://www.watchman.org/scientism/ProfileScientism.pdfAdditional ResourcesFREE: We are also offering a subscription to our 4-page bimonthly Profiles here: www.watchman.org/FreePROFILE NOTEBOOK: Order the complete collection of Watchman Fellowship Profiles (around 700 pages -- from Astrology to Zen Buddhism) in either printed or PDF formats here: www.watchman.org/NotebookSUPPORT: Help us create more content like this. Make a tax-deductible donation here: www.watchman.org/GiveApologetics Profile is a ministry of Watchman Fellowship For more information, visit www.watchman.org © 2026 Watchman Fellowship, Inc.