Questions tagged [fermi-paradox]

For questions about why humanity has never found evidence of aliens. Are we alone? The Fermi Paradox is an argument that suggests we should have encountered aliens by now... unless they don't exist.

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If there's a human-level civilization in a nearby star system, would we detect it? [duplicate]

So, I'm not into writing or creating any new worlds, but this question (or a set of questions) was bothering me for a while and I thought it's a good place to ask. If there exists an alien ...
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Would a life form with the intelligence of a human but without an appendage for manipulating its environment be able to have advanced technology?

On another planet there is a life form that has the same level of intelligence as humans on Earth, but it has no appendage to manipulate its environment. It has similar social structures to humans ...
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Preventing dumb self-replicating machines to take over the humanity and potential case for the Fermi paradox [duplicate]

It could be that the solution to the Fermi paradox is that civilizations of biological creatures are typically destroyed due to being taken over by machines that are much dumber than the original ...
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Can existential crisis wipe out a civilization?

Is it plausible that an advanced civilization commits suicide due to philosophical despair? (if not committing suicide directly, then doing something like collectively party to death) If yes, what ...
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Could the cosmic background radiation solve the Fermi Paradox?

The Fermi Paradox contrasts the overwhelming lack of evidence of alien life with the high theoretical probability of observable alien life. Groups such as SETI observe incoming radiation ...
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Could alien messages be detected within star radiation?

I am often seeing articles based on the Fermi Paradox appearing from various news outlets, journals, and Facebook pages. They usually tend to agitate me due to factors that I believe the writer has ...