In 1977 a signal from space was detected, a signal that
might have come from aliens. It is now
known as the WOW! Signal. There are
rumors that a second WOW! signal was received recently from the same
area. Should we answer it?
It might be dangerous to let aliens know we are here. Perhaps we should hide. On the other hand, they probably can detect
our presence anyway and not answering could be considered rude. ...
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