The Great Filter is the idea that somewhere in the path from a planet's earliest lifeless chemistry to a spacefaring, detectable civilization, one or more barriers make that outcome exceedingly rare, which would help explain why the universe appears empty of other intelligent life despite its size and age. Proposed candidates for the filter range from the origin of life itself to civilizations destroying themselves before becoming interstellar.
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Associated With
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Source Wikipedia (space and spaceflight articles)
Sources
1. Wikipedia (space and spaceflight articles)
Wikimedia FoundationGreat Filter, origin section
The idea was first proposed in an online essay titled 'The Great Filter - Are We Almost Past It?'.
Great Filter, lead section
The Great Filter is the idea that in the development of life from the earliest stages of abiogenesis to the highest levels of development on the Kardashev scale, there is a barrier that makes detectable extraterrestrial life exceedingly rare.
- Associated With: Fermi Paradox
- Associated With: Drake Equation
- Associated With: Dyson Sphere
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