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In recent months several leading astrophysicists from NASA to Harvard have suggested aliens are not science fiction: that advanced and ancient technological civilizations may exist but be beyond our comprehension or ability to detect. Silvano P. Colombano at NASA’s Ames Research Center proposes that we may have missed signals when it comes to looking for UFOs.

“Our form of life and intelligence,” observes Colombano, “may just be a tiny first step in a continuing evolution that may well produce forms of intelligence that are far superior to ours and no longer based on carbon “machinery.”

In a similar vein, the director of Columbia University’s Astrobiology Center Caleb Scharf proposes that alien life could be so advanced it becomes indistinguishable from physics. While Harvard’s Avi Loeb suggests that the first-known interstellar visitor to our Solar System, Oumuamua, could be a probe sent by an alien space-faring civilization, and that the scientific community should be more willing to acknowledge and embrace uncertainty.

After a mere 50 years of computer evolution we are already talking about “super-intelligence” and we are quickly becoming symbiotic with computer power, says Colombano, who adds: I don’t want to address the issue of the survival of our species, or its future “role” within a continuing evolution of millions of years. I simply want to point out the fact that the intelligence we might find and that might choose to find us (if it hasn’t already) might not be at all be produced by carbon based organisms like us.”

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