11 Theories As To Why Aliens Haven't Visited Us That Are Going To Make You Think

Have you ever heard of Fermi’s paradox? If not, it’s basically the contradiction between the HIGH statistical probability that aliens exist and the lack of contact we’ve had with them.

1.Humans aren’t capable of receiving the type of signals alien civilizations have sent us.

Reddit user matchstiq summed this theory up best: “The time span between when a civilization becomes capable of transmitting radio frequencies and when that civilization annihilates itself is so short that we seldom overlap.”

Humans just discovered radio waves in the 1880s, so maybe we’ll learn interstellar travel sooner than later and annihilate ourselves through war or some sort of technological accident shortly thereafter, leaving the next intelligent civilization to wonder where everyone’s at.

Read more on this theory here.

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Perhaps it’s to avoid potential danger if they’re discovered. Maybe there are vicious predators lurking throughout the universe and advanced beings don’t want to be found by them.

Read more on this theory here.

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Perhaps some higher beings created a simulation and we’re a part of it. Maybe this virtual reality was made for research purposes, or perhaps it’s a simulated planetarium of sorts. Either way, if the creators don’t encode aliens into it, we’ll never encounter ’em.

Read more on this theory here.

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Life can only happen under particular, improbable circumstances, so intelligent beings are out there, but they’re so uncommon that it’s extremely unlikely we’ll cross paths.

Read more on this theory here.

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Somehow humans being in the universe alone isn’t any less disturbing than the other possibilities. It might not be as exciting as other theories, yet it manages to be just as existentially troubling.


Read more on this theory here.

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As Kurzgesagt brilliantly explained, “Matrioshka brain” is a theoretical “megastructure surrounding a star.” It’d have enough computer power for an entire species to “upload their consciousness and exist in a simulated universe.” This would mean one could potentially experience “an eternity of pure ecstasies without ever being bored or sad.” If that type of technology has been achieved, aliens certainly won’t be cruising around space searching for others.

See more on this theory here and here.

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Plenty of folks claim to have seen or been abducted by aliens, but they’re not taken seriously. What if governments know of aliens but are withholding information from the masses? Surely there’s a concern that announcing their existence would lead to some sort of global hysteria, so maybe those atop the chain of command choose to keep aliens a secret.


Read more on this theory here.

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Neil deGrasse Tyson compared it to the way humans view chimps. He says humans and chimps share over 98% identical DNA, yet we’re significantly more intelligent than them. Humans create art and develop technology, but chimps can’t, despite only being a small percentage different. So what if there were aliens 1% different from us in the way that we are from chimps?

DeGrasse Tyson says “We’d be drooling, blithering idiots in their presence.” If an advanced alien species trying to have a conversation with humans would be like humans trying to have a conversation with a chimp, or a bird, or a worm, then that could explain why we haven’t encountered them.

See more on this theory here.

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