Statements (14)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific theory
|
| gptkbp:alternativeTo |
Fermi paradox solutions
|
| gptkbp:describes |
extraterrestrial civilizations deliberately avoid contact with Earth
|
| gptkbp:explains |
apparent lack of evidence for extraterrestrial life
|
| gptkbp:field |
gptkb:Fermi_paradox
astrobiology |
| https://www.w3.org/2000/01/rdf-schema#label |
The Zoo Hypothesis (1973)
|
| gptkbp:influenced |
subsequent SETI discussions
|
| gptkbp:proposedBy |
gptkb:John_A._Ball
Earth is observed but not contacted by advanced civilizations |
| gptkbp:publicationYear |
1973
|
| gptkbp:publishedIn |
gptkb:Icarus
|
| gptkbp:bfsParent |
gptkb:John_A._Ball
|
| gptkbp:bfsLayer |
6
|