| The issue, as correctly emphasized by Carl Sagan, is the probability of the evolution of high intelligence and an electronic civilization on an inhabited world. Once we have life (and almost surely it will be very different from life on Earth), what is the probability of its developing a lineage with high intelligence? On Earth, among millions of lineages of organisms and perhaps 50 billion speciation events, only one led to high intelligence; this makes me believe in its utter improbability. |
| / Ernest Mayr / |
gmail*com.
ikonra kattintva magyarul is olvashatod az észlelést.| Show me the newest sketches! | ||||||||||||||||
| By type: | open clusters [67] | globular clusters [14] | diffuse nebulae [3] | dark nebulae [0] | planetary nebulae [27] | variable stars [18] | binary stars [23] | asterisms [2] | galaxies [119] | quasars [1] | planets [2] | minor planets [1] | comets [5] | Sun [0] | Moon [5] | other objects [8] |
| By catalogue: | Messier 1-50 [20] | Messier 51-110 [18] | NGC 1-1000 [17] | NGC 1001-2000 [21] | NGC 2001-3000 [32] | NGC 3001-4000 [25] | NGC 4001-5000 [18] | NGC 5001-6000 [22] | NGC 6001-7000 [40] | NGC 7001-7840 [35] | IC 1-5386 [1] | other catalogues [71] | uncataloged [10] |
 [25]
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