If life is common, why is the universe so silent?
In short: The sheer scale and age of our universe suggest that extraterrestrial life should be everywhere. Yet, we find ourselves in a profound silence. This video explores the Fermi Paradox and the unsettling possibilities of why we haven't met anyone yet.
The core tension lies between the high probability of alien existence—given how quickly life emerged on Earth—and the total lack of evidence for it. We see no signals from Mars, no radio communications, and no civilizations dominating galaxies or consuming their energy resources.
This absence leads to the Fermi Paradox: if life is likely, where is everybody? The video examines this mystery through the lens of the Great Filter, a concept suggesting there may be an evolutionary hurdle that prevents most life from becoming space-faring.
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Sources
- Summary by Intellect · source: Discovering Aliens & The Great Filter
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