Unverified50% confidenceOpinionExact time
A science popularization creator proposed in a YouTube video that interstellar colonization is itself self-limiting and that civilizations may implode while competing for limited planets, which is one explanation for the Fermi paradox.
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50%
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Long-term
Relevance
10/21/2026
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UnverifiedThe video proposes that if 'sideways' expansion (across universes) is easier than 'outward' expansion, civilizations may have no reason to spread visibly within their native galaxies and little incentive to contact distant aliens, which offers a new solution to the Fermi paradox.69% similarUnverified费米悖论由物理学家恩里科·费米于1950年提出，核心问题是如果银河系存在大量潜在外星文明，为什么至今没有观测到它们的任何迹象66% similarUnverifiedThe author argues that a real-world prison planet would more likely be a transitional world undergoing terraforming rather than a truly habitable and valuable planet.64% similarUnverifiedThe various explanations of the Fermi paradox (including the dark forest, the great filter, and the colonial implosion hypothesis) serve more as heuristic frameworks to help people think about the boundary conditions of civilizational expansion than as directly testable scientific theories.60% similarUnverifiedCopernicus moved Earth out of the center of the universe, Darwin included humans in biological evolution, and Freud revealed the unconscious beneath rationality; every scientific leap has shaken humanity's self-image.55% similar
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