Hawking: Aliens may pose risks to Earth
Excerpt:
Hawking claims in a new documentary that intelligent alien lifeforms almost certainly exist, but warns that communicating with them could be "too risky."
The 68-year-old scientist says a visit by extraterrestrials to Earth would be like Christopher Columbus arriving in the Americas, "which didn't turn out very well for the Native Americans."
Basically, he is reiterating what other physicists have been saying over the last couple of months, but the thing that piques my interest about this is that while science has been telling us that interaction with an ET civilization is highly unlikely because of the 'vast distances of interstellar travel', it make you wonder what ideas are changing among physicists (if any) to bring this up "now", if it's something they feel is a non-issue for a very, "very" long time.
Is Hawking possibly hinting at something, or simply playing on science fiction to attract ratings for his upcoming series? Maybe it's nothing more than speculative thoughts he felt like voicing.
It is interesting, however, that the once common and widely accepted theory that advanced civilizations would be 'enlightened' and therefore be well beyond war and plundering, is now being looked at in largely different light.
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