The Fermi Paradox

Mateus Bueno

Transcript

1. The Fermi Paradox And some of its terrifying solutions
3. “[...] is the apparent contradiction between the lack of evidence and high probability estimate for the existence of extraterrestrial civilizations." Wikipedia The Fermi Paradox
4. OUR UNIVERSE 93 billion light-years
5. x 2
6. x 282
7. THE DRAKE EQUATION N = R ∗ f p n e f l f i f c L • N = the number of civilizations in our galaxy with which communication might be possible (i.e. which are on our current past light cone); • R ∗ = the average rate of star formation in our galaxy • f p = the fraction of those stars that have planets • n e = the average number of planets that can potentially support life per star that has planets • f l = the fraction of planets that could support life that actually develop life at some point • f i = the fraction of planets with life that actually go on to develop intelligent life (civilizations) • f c = the fraction of civilizations that develop a technology that releases detectable signs of their existence into space • L = the length of time for which such civilizations release detectable signals into space
8. THE MILKY WAY
9. 13 BILLION YEARS
10. 400 billion stars
11. 20 billion are sun like
12. 4 BILLION HAVE AN EARTH LIKE PLANET
15. SOLUTIONS TO THE PARADOX
16. GREAT FILTERS
18. LIFE FILTER 1 FILTER 2 FILTER 3 GREAT FILTER ADVANCED SOCIETY
19. MAYBE WE PASSED THEM
23. MAYBE THEY’RE YET TO COME
25. MAYBE ALIENS HAVE NO INTEREST IN OUR EXISTENCE
29. MAYBE THEY HATE US
31. GREY GOO
33. MAYBE THERE ARE BETTER THINGS TO DO
35. MATRIOSHKA BRAIN
38. THE ZOO HYPOTHESIS
40. THE SIMULATED UNIVERSE HYPOTHESIS
42. Humans will be extinct before we are able to create simulations of life
43. A society with such ability would not run many simulations
44. We are currently living in a simulation
45. MAYBE WE JUST DON’T UNDERSTAND THEM
47. THE RARE EARTH
49. Doubts? Suggestions? Feedbacks?
50. THANK YOU