Avi Loeb does full justice to safeguarding our planet from extraterrestrials:
But the moment we know that we are not alone, that we are almost certainly not the most advanced civilization ever to have existed in the cosmos, we will realize that we’ve spent more funds developing the means to destroy all life on the planet than it would have cost to preserve it.
Quoted from Extraterrestrial, by Avi Loeb.
Abraham (Avi) Loeb is the Frank B. Baird, Jr., Professor of Science at Harvard University.
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