New research paper from the Cool Worlds Lab! Today we explore the implications of a classic result in statistics but applied to alien life for the first time. The result implies a startling conclusion, the cosmos is either teeming with intelligent civilizations, or we're essentially alone. Join us today as explore how this works and what the implications might be.

Written & presented by Prof. David Kipping.

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THANK-YOU to D. Smith, M. Sloan, L. Sanborn, C. Bottaccini, D. Daughaday, A. Jones, S. Brownlee, N. Kildal, Z. Star, E. West, T. Zajonc, C. Wolfred, L. Skov, G. Benson, 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, K. Myers, A. Schoen, K. Dabrowski, J. Black, R. Ramezankhani, J. Armstrong, K. Weber, S. Marks, L. Robinson, S. Roulier, B. Smith, J. Cassese, J. Kruger, S. Way, P. Finch, S. Applegate, L. Watson, E. Zahnle, N. Gebben, J. Bergman, E. Dessoi, C. Macdonald, M. Hedlund, P. Kaup, C. Hays, W. Evans, D. Bansal, J. Curtin, J. Sturm, RAND Corp., M. Donovan, N. Corwin, M. Mangione, K. Howard, L. Deacon, G. Metts, R. Provost, B. Sigurjonsson, G. Fullwood, B. Walford, J. Boyd, N. De Haan, J. Gillmer, R. Williams, E. Garland, A. Leishman, A. Phan Le, R. Lovely, M. Spoto, A. Steele, K. Yarbrough, A. Cornejo, D. Compos, F. Demopoulos, G. Bylinsky, J. Werner, B. Pearson, S. Thayer, T. Edris, B. Seeley, F. Blood, M. O'Brien, P. Muzyka, D. Lee, J. Sargent, M. Czirr, F. Krotzer, I. Williams, J. Sattler, J. Smallbon, B. Reese, J. Yoder, O. Shabtay, X. Yao, S. Saverys, M. Pittelli, A. Nimmerjahn, C. Seay, D. Johnson, L. Cunningham, M. Morrow, M. Campbell, R. Strain, B. Devermont, Y. Muheim & A. Stark.

REFERENCES
► Kipping & Geraint 2024, "Do SETI Optimists Have a Fine-Tuning Problem?", International Journal of Astrobiology, submitted ([ Ссылка ])
► Jaynes 1968, "Prior Probabilities", IEEE Transactions on Systems Science and Cybernetics , 4, 227: [ Ссылка ]

CHAPTERS
0:00 Aliens!
1:00 Jaynes' Experiment
3:33 What about Drake?
6:31 Birth-Death Balance
9:51 Bridging to Jaynes
11:04 Challenging the Optimists
13:17 Just Sample More Stars?
15:39 Disequilibria
17:22 The Case for SETI
19:31 Outro & Credits

#Aliens #AreWeAlone #CoolWorlds

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