Statements (17)
| Predicate | Object |
|---|---|
| gptkbp:instanceOf |
scientific theory
|
| gptkbp:alternativeTo |
gptkb:Rare_Earth_hypothesis
gptkb:Great_Filter_hypothesis |
| gptkbp:category |
extraterrestrial life
philosophy of science hypotheses |
| gptkbp:field |
gptkb:SETI
astrobiology |
| https://www.w3.org/2000/01/rdf-schema#label |
Zoo hypothesis
|
| gptkbp:proposedBy |
gptkb:John_A._Ball
extraterrestrial civilizations intentionally avoid contact with Earth Earth is observed like a zoo by advanced civilizations |
| gptkbp:publishedIn |
gptkb:Icarus_(journal)
|
| gptkbp:relatedTo |
gptkb:Fermi_paradox
|
| gptkbp:yearProposed |
1973
|
| gptkbp:bfsParent |
gptkb:Fermi_paradox
|
| gptkbp:bfsLayer |
4
|