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The branch of thought that asks what the cosmos means for our sense of scale, significance, and purpose. In a universe of billions of galaxies, each with billions of stars, what is one planet, one species, one person? If we're made of stardust, are we the universe experiencing itself, or just complex chemistry with delusions of grandeur? And if we're alone in all that vastness, is that loneliness or freedom? Space philosophy doesn't provide answers, but it does make you feel very small and very precious at the same time, which is either wisdom or vertigo.
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