Unpopular Opinion

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Extraterrestrials doesn't exist (lemmy.world)

submitted 1 day ago by borokov@lemmy.world to c/unpopularopinion@lemmy.world

55 comments fedilink hide all child comments

We are the only life form of the univers. Not even the only intelligent, but the only one. My arguments are:

Life is absolutely everywhere on earth. There is not a single isolated island or deep trench in the ocean that is not covered by life. If life can live elsewhere, univers would be covered by life. Some bacteria would have been ejected into space by some cataclysme and had colinized nearby planets. Kind of Fermi's paradoxes.

Antropic argument. Our universe is suitable for life because if it weren't, we simply wouldn't be there. Add it to Okam razor. If a smaller, simpler, universe could handle life, we would be in that one. Not our current one.

"Our universe is so huge, so there must be other life form" is not the right statement. Our universe is so huge because it is the smallest universe where life could potentially appear.

Only my opinion, not a scientific demonstration.

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[–] JohnnyCanuck@lemmy.ca 7 points 1 day ago (1 children)

If a smaller, simpler, universe could handle life, we would be in that one.

That is a leap of logic that needs explanation. It sounds like you're misinterpreting Occam's razor. The razor is that an explanation is built with the smallest possible set of elements. It's a huge leap to extend that to us living in the smallest universe.

[–] borokov@lemmy.world 1 points 17 hours ago

I agree, I do an easy extrapolation of Okam razor. What I try to say is that the argument that universe is big so there must be other life form doesn't make sense to me, and it may even be the opposite.

Assuming there are other life forms because universe is big implicitly assume probability of life apparition is higher than maybe 10e-20 per solar system. But even if our universe seem huge for our tiny brain, it is insignificant when dealing with combinatory probabilities. We can quickly reach 10e-100, 10e-1000 or even smaller probabilities just by adding some simple requirement. And as we have no ideas of the value of Drake equation, we really have no idea of probability of life apparition. Maybe this probability is so small that is it a miracle that we exist in a our "small" univese.