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Re:Ask HN: Review my startup idea – Omegle-like site for dis... by gus_massa on Friday July 15, 2022 @08:45AM (#32107543)
> Are we alone in this universe?

Probably not, but nobody is sure.

> Is there any other civilization out there?

Probably yes, but nobody is sure.

> How do they look?

That's difficult. I'll skip it.

> Do they also have governments?

I guess yes. When you have a lot of entities you need some organization. Let's call it government.

> Why they have never revealed themselves to us?

Nobody is sure, but the current guess based in STEM is that bacteria-like life is very common. Nobody is sure, but perhaps there is another bacteria-like fife in the Solar system that evolved independently. It's far from sure, but it looks possible.

From bacteria-like to human-like there are a few important and difficult steps. Take a look at https://en.wikipedia.org/wiki/History_of_life Photosynthesis? Mitochondria/Eukaryotes-like?, Multicelular?[1], Advanced animals-like[2]? Intelligence? No one is even sure about which are the difficult steps.

So the current guess is that other civilizations are very far away. Communication is difficult and traveling here in a UFO is almost impossible.

[1] I think this is an easy step.

[2] Not just sponge-like

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