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We have been inadvertently betraying our presence for 60 years with our television, radio and radar transmissions. The earliest episodes of I Love Lucy have washed over 6000 or so star systems, and are reaching new audiences at the rate of one solar system a day. If there are sentient beings out there, the signals will reach them.
Originally posted by TheLoneArcher
Humm, interesting thought. However, it could be that they are simply not fans of I Love Lucy and have decided to boycot us.
Dale Fixsen of the University of Maryland at College Park, added that to get the signal they detected, radio galaxies would have to be packed "into the universe like sardines," he said. "There wouldn't be any space left between one galaxy and the next."
Originally posted by deltaalphanovember
Awesome link, thank you!
maybe there is SO MUCH noise out there from all the alien civilisations that it has all blended into one huge, indecipherable mess. Almost like white noise ... cancelling out everything else.
The Drake equation (sometimes called the Green Bank equation or the Green Bank Formula) is an equation used to estimate the potential number of extraterrestrial civilizations in the Milky Way galaxy. It is used in the fields of exobiology and the search for extraterrestrial intelligence (SETI). The equation was devised by Frank Drake in 1961.
The Drake equation is closely related to the Fermi paradox in that Drake suggested that a large number of extraterrestrial civilizations would form, but that the lack of evidence of such civilizations (the Fermi paradox) suggests that technological civilizations tend to disappear rather quickly. This theory often stimulates an interest in identifying and publicizing ways in which humanity could destroy itself, and then counters with hopes of avoiding such destruction and eventually becoming a space-faring species. A similar argument is The Great Filter, which notes that since there are no observed extraterrestrial civilizations, despite the vast number of stars, then some step in the process must be acting as a filter to reduce the final value. According to this view, either it is very hard for intelligent life to arise, or the lifetime of such civilizations must be relatively short.
The Fermi Paradox is the apparent contradiction between the high probability extraterrestrial civilizations' existence and the lack of contact with such civilizations