Twenty or more alien hypotheses
This is posted with an expectation of somebody might get some real inspiration to produce a FILM.
The film should make fiction looks real and a scientific fact emerging.
It should hit the audience by surprise and narrow the hypotheses to three or four.
1. Extraterrestrial life is rare or
non-existent
Unlikely.
2. No other intelligent species have
arisen
Most unlikely
3. Intelligent alien species lack
advanced technology
Unlikely
4. It is the nature of intelligent
life to destroy itself
Very likely given time and space
5. It is the nature of intelligent
life to destroy others
Real scenario
6. Periodic extinction by natural
events
Enough evidence in our planet.
It takes 4 to 5 five billion yeas for
life as cells to emerge from stellar remnants.
7. Inflation hypothesis and the
youngness argument
No comments
8. Intelligent civilizations are too
far apart in space or time
It is a real hindrance.
9. It is too expensive to spread
physically throughout the galaxy
Not really, if a civilization is
threatened at least a significant minority will consider colonizing
elsewhere hospitable
10. Human beings have not existed
long enough
That is a fact.
11. Humans are not listening properly
More than likely
12. Civilizations broadcast
detectable radio signals only for a brief period of time
It could be a deciding factor.
13. They tend to isolate themselves
Real paranoia
14. They are too alien
15. Everyone is listening, no one is
transmitting
16. Earth is deliberately not
contacted
17. Earth is purposely isolated
(planetarium hypothesis)
18. It is dangerous to communicate
19. They are here undetected
20. They are here unacknowledged
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