For the idea that Earth has been affected in the past by short-lived, violent worldwide events, see Catastrophism.
Hypothesis for lack of detected aliens
Gamma-ray bursts might have regulated the advent of intelligent life
Neocatastrophism is the hypothesis that life-exterminating events such as gamma-ray bursts have acted as a galactic regulation mechanism in the Milky Way upon the emergence of complex life in its habitable zone.[1][2][3] It is one of several proposed solutions to the Fermi paradox since it provides a mechanism which would have delayed the advent of intelligent beings in local galaxies near Earth.
^Cirković MM, Vukotić B. (2008). Astrobiological phase transition: towards resolution of Fermi's paradox.
Orig Life Evol Biosph. 38(6):535-47. doi:10.1007/s11084-008-9149-y PMID 18855114
^Ćirković M.M. (2009). Fermi's paradox: The last challenge for copernicanism? Serbian Astronomical Journal 178:1-20 doi:10.2298/SAJ0978001C
^Cirkovic, M. M. Vukotic, B. (2009). Astrobiological Landscape and Neocatastrophism.[permanent dead link] Publications of the Astronomical Observatory of Belgrade,86:193-19
Neocatastrophism is the hypothesis that life-exterminating events such as gamma-ray bursts have acted as a galactic regulation mechanism in the Milky Way...
Atlantis. Scientists vigorously rejected Velikovsky's conjectures. Neocatastrophism is the explanation of sudden extinctions in the palaeontological record...
inference Kardashev scale – Measure of a civilization's evolution Neocatastrophism – Hypothesis for lack of detected aliens Principle of mediocrity –...
organisms Catastrophism was largely replaced by uniformitarianism and neocatastrophism Cryptoexplosion craters, now discarded in favour of impact craters...
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