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#428 – Sean Carroll: General Relativity, Quantum Mechanics, Black Holes & Aliens
Lex Fridman Podcast
The Search for Intelligent Alien Civilizations
The possibility of intelligent alien civilizations existing is uncertain, with the lack of observable civilizations pointing towards their potential nonexistence. While life's ability to thrive in various conditions suggests the likelihood of alien civilizations, the time it takes for life to evolve significantly impacts the probability of their existence. The presence of microscopic life on other worlds is plausible, but the lack of complex forms raises questions. Various hypotheses exist, including the idea that advanced civilizations may have reasons not to make contact or that a 'great filter' prevents civilizations from advancing and thriving. Despite these speculations, the limited understanding of the universe calls for humility and an openness to multiple possibilities.
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