OptionProbability
Something else
We're the first and/or only intelligent life in our light cone
The "Grabby Aliens" hypothesis
Intelligent life is doomed to destroy itself
Something makes interstellar expansion incredibly impossible
The aliens are already here
42
41
7
6
4
0
OptionVotes
YES
NO
2127
470
Intelligent life is evolutionarily extremely rare
Other intelligent life is too different to recognize
The nature of intelligent life is to destroy itself
Other intelligent life is hiding / communication is dangerous
Intelligent life inevitably loses interest in outside contact
Natural disasters destroy intelligent life
Intelligent life is not evolutionarily rare, but we're the first ones here
61
14
13
5
3
2
274
37
1078
925
100
1182
554
239
84
259
39
1056
965
112
89