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In reply to the discussion: I am not afraid to post this: [View all]Sympthsical
(10,411 posts)I have no doubt life is probably more profuse throughout the universe than surmised. In the next few decades, I expect us to detect something either on one of the moons in our solar system or through transmission spectroscopy on exoplanets. It may be that simple life is extremely common.
But Drake's equation is ever in my head when it comes to UFOs. You have to have life, it has to evolve into a complex form that possesses intelligence. It can't be wiped out by climate changes, astronomical events, or societal self-destruction. It then has to become capable of technology (What if they don't have something like hands? We're a dexterous species). It then has to become technological to the point that the vast distances and time considerations on a galactic or universal scale can be bridged. It has to exist in this incredibly advanced state at the same point in 13.8 billion years that we currently exist.
And with all that, it has to find us specifically - an atom on the needle in a quadrillion haystacks - and come chill. It has to do so in such a way that we never have solid verifiable evidence outside of some lights or witness statements, not even when half our planet is walking around with cameras in their pockets.
That's a lot. Not impossible - the universe is too vast to say never to many things. But I'll need a lot of evidence to believe that series of circumstances has occurred.
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