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Advanced Civilizations and Time Travel

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Abstract

We have looked into the possibility of using time tunnels to travel to the future and back to the past. More importantly, though, we would like to know if someday in the distant future these tunnels will be used to travel to the stars. If this does happen, it is reasonable to assume that other civilizations somewhere out there are using them right now Do we have any evidence that this is the case? Unfortunately, we don’t; we can only speculate, but careful scientifically guided speculation is often useful.

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Article
The reasons for and the activities of SETI (Search for Extraterrestrial Intelligence) are discussed. The history of the notion of intelligent life existing on other worlds is reviewed, and ideas of aliens in modern popular culture are examined. Arguments for and against the existence of intelligent life elsewhere are considered. Reports of extraterrestrial intelligence that turned out to be false are described, as are the messages sent out from earth to any aliens that may find them. The fight to maintain SETI funding and the related efforts in other countries are discussed. The arguments about UFOs are reviewed.
The Search for Life Beyond Earth: A Scientific Update
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