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Why Does the Universe Expand?

82 points · 77 comments · the__alchemist

  1. bionhoward · · focus · HN ↗
    I feel cosmology ought to grapple more with, “Why is there something rather than nothing?” That question and this question are certainly linked. If expansion is a mirror of collapse, how do we get from some initial nothingness to a point where there is something capable of collapsing? Starting with an infinite amount of stuff everywhere feels like cheating.
    1. cgio · · focus · HN ↗
      But that’s cosmogony, not cosmology. Cosmology can just explore the cosmos that is there not having to worry about why it came to be. If there’s a causality of causality, then what’s the cause of itself.
      1. bionhoward · · focus · HN ↗
        huh, i never heard of cosmogony, that's cool, thank you
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