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ALIENS are surely AMONG US: Average star has TWO potentially Earth-like worlds

Bob Wheeler

“It could be that there is some other bottleneck for the emergence of life that we haven’t worked out yet. Or intelligent civilisations evolve, but then self-destruct.”

Given that we developed nuclear weapons before any form of space travel, if other civilisations evolved along similar lines, than is it not possible they blew themselves to dust before getting off the ground?

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