The Great Filter: Human Expansion and the Search for Life
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The Great Filter: Human Expansion and the Search for Life
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概要
In this episode, we explore one of the most unsettling questions in science:
Why haven’t we found intelligent life in the universe?
The Great Filter hypothesis suggests that somewhere between the birth of life and the rise of advanced civilizations, there exists a barrier so difficult that most life never makes it past it.
But where is this filter?
Is it behind us — meaning humanity is rare and incredibly lucky?
Or is it ahead of us — waiting in the form of existential risks like artificial intelligence, climate collapse, or technological self-destruction?
Drawing from recent research, including studies on computational limits for space colonization and new discoveries like potential biosignatures on exoplanets such as K2-18b, this episode explores the tension between human progress and cosmic silence.
Can humanity overcome these barriers and expand beyond Earth?
Or will we become another civilization that never made it far enough to be seen?
This is not just a story about space.
It’s a question about our future.