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Our Alien DNA

• arclein
In 1960, a young astronomer by the name of Frank Drake pointed the Green Bank radio telescope at the stars Tau Ceti and Epsilon Eridani?and listened for the sounds of an alien civilization. Drake's little experiment marks the official beginning of the Search for Extraterrestrial Intelligence (SETI). Since that time, SETI has continued to scan greater parts of the sky, listening over wider and wider bands of the radio spectrum, but the silence has been deafening. While many have taken this as a likely sign that the cosmos is largely empty, it may be more likely that SETI's search has been far too restricted in its scope, relying on just one particular 20th century technology that is already fading in use. As the psychedelic philosopher Terence McKenna once dryly noted, "To search expectantly for a radio signal from an extraterrestrial source is probably as culture bound a presumption as to search the galaxy for a good Italian restaurant".

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