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I didn't really understand mekkkkkk's question, but I wrote up a longer reply here at your prompting: https://news.ycombinator.com/item?id=24424626 https://new

• joshspankit 6y ago
  Thank you. If I understand what you’ve written already, the essence of the answer in terms of mekkkkkk’s question (for reference: “ Sorry for also asking a space 101 question, but since the fabric of space is expanding, does that mean that things are getting bigger as well? Naively, it would seem that way. In your balloon example, the dots would get bigger.”), I think the answer would be: Anything held together (for example by gravity, or the force that keeps out atoms together) is not growing along with the universe simply because those forces are (for now) stronger than the expansion. This does produce an interesting side question though: aren’t we (humans) shrinking in relation to the universe? Or, without the click-baity phrasing: isn’t the universe growing without us?
  • ddevault 6y ago
    >This does produce an interesting side question though: aren’t we (humans) shrinking in relation to the universe? Or, without the click-baity phrasing: isn’t the universe growing without us? Yep.
    • joshspankit 6y ago
      (thinking emoji) (thinking emoji) (thinking emoji) (mindblown emoji)