Do "Grabby Aliens" Solve The Fermi Paradox?

Thanks to Storyblocks for sponsoring this video! Download unlimited stock media at one set price with Storyblocks: https://www.storyblocks.com/CoolWorlds There are many possible solutions to the Fermi Paradox but a few have risen to particular prominence - including the "Grabby Aliens" hypothesis. Today, we'll explore what this solution proposes, what it assumes, and ultimately three reasons why I personally don't think it's right. Written & presented by Prof. David Kipping. Edited by Jorge Casas. Special thanks to Robin Hanson for his discussions with me on this. → Support our research: https://www.coolworldslab.com/support → Get merch: https://teespring.com/stores/cool-wor... → Check out our podcast:    / @coolworldspodcast   THANK-YOU to T. Widdowson, D. Smith, L. Sanborn, C. Bottaccini, D. Daughaday, S. Brownlee, E. West, T. Zajonc, A. De Vaal, M. Elliott, B. Daniluk, S. Vystoropskyi, S. Lee, Z. Danielson, C. Fitzgerald, C. Souter, M. Gillette, T. Jeffcoat, J. Rockett, D. Murphree, M. Sanford, T. Donkin, A. Schoen, K. Dabrowski, R. Ramezankhani, J. Armstrong, S. Marks, B. Smith, J. Kruger, S. Applegate, E. Zahnle, N. Gebben, J. Bergman, C. Macdonald, M. Hedlund, P. Kaup, W. Evans, N. Corwin, K. Howard, L. Deacon, G. Metts, R. Provost, G. Fullwood, N. De Haan, R. Williams, E. Garland, R. Lovely, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, S. Thayer, T. Edris, F. Blood, M. O'Brien, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, B. Reese, O. Shabtay, X. Yao, S. Saverys, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, B. Devermont, Y. Muheim, A. Stark, C. Caminero, P. Borisoff, A. Donovan & H. Schiff. REFERENCES ► Hanson, R. et al. 2021, "If Loud Aliens Explain Human Earliness, Quiet Aliens Are Also Rare", ApJ, 922, 182: https://arxiv.org/abs/2102.01522 ► Carter, B. 2008, "Five or six step scenario for evolution?", Int. J. Astrobiology, 7, 103516: https://arxiv.org/abs/0711.1985 ► Kipping, D. 2021, "The Red Sky Paradox", PNAS, 118, e2026808118: https://arxiv.org/abs/2106.11207 MUSIC Licensed by SoundStripe.com (SS) [shorturl.at/ptBHI], Artlist.io, via CC Attribution License (https://creativecommons.org/licenses/...) or with permission from the artist. 0:00 - Tamuz Dekel - Quiet Pull 2:55 - Joachim Heinrich - Horizon 4:13 - Joachim Heinrich - Stjärna 6:41 - Hill - World of Wonder 7:43 - Chris Zabriskie - The Oceans Continue to Rise 9:33 - Hill - Arctic Warmth 12:21 - Hill - Northern Boards 15:39 - Hill - Fragile 19:10 - Hill - The Meek CHAPTERS 0:00 Grabby Aliens 6:43 StoryBlocks 7:47 Hard Steps 12:00 M-Dwarfs 15:30 Philosophical Issues 18:05 Conclusions 19:10 Outro and Credits #GrabbyAliens #FermiParadox #CoolWorlds