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Barriers to Becoming a Kardashev Civilization

Science & Futurism with Isaac Arthur

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The Kardashev Levels of Technology

Kardashev levels are used to categorize civilizations by their power usage. A K2 civilization is just one that uses all the power generated by its star, rather than just all the sunlight that star puts on their planet. Once they've built megastructures to capture all that energy radiated onto a planet, they don't need higher tech megastructure to encase a star. Categorizing civilizations for SETI purposes will determine how you could detect extraterrestrial intelligence.

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