Why Every Alien Civilization Might Be Dead_ The Great Filter
Close your eyes and let the terrifying concept of the Great Filter settle into your mind. A story of why every alien civilization might be dead, and why we may be walking toward the same fate. The Great Filter is a theoretical barrier that makes it almost impossible for life to evolve into a space-faring civilization. It could be behind us, meaning we are a rare exception, or it could be ahead of us—a catastrophe like nuclear war, environmental collapse, or superintelligent AI that destroys its creators. A 2026 study suggests the average lifespan of a technological civilization is only 5,000…
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