For decades, scientists have searched the skies for signs of extraterrestrial technology. A study from EPFL asks a sharp question: if alien signals have already reached Earth without us noticing, what should we realistically expect to detect today?
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That’s the tricky bit. We won’t know unless we find it.
The signal would have had to orginated hundreds of years ago and pointed at one part of their sky. A needle in an infintely large haystack.
The chance is infinitisimal.
The odds are astronomical.
