2 ms·

Where in the Wikipedia page does it seem say so? I can't find anything relevant but then again I don't understand all of it.

• ganzuul 2y ago
  > A perfect and pressureless fluid can be interpreted as a model of a configuration of dust particles that locally move in concert and interact with each other only gravitationally, from which the name is derived. That "only" is important but unintuitive. It means space and time can not be separated from mass.
  • nyssos 2y ago
    It absolutely does not. "Interact with each other only gravitationally" has its plain and ordinary meaning: we're ignoring other interactions. No charge, no collisions, no radiation, etc.
  • NemoNobody 2y ago
    Are you trying to say the ring is proof that something assembled the stars as such to engineer an eternal circle, intentionally - the intent being the profound thing? Light travels very fast but space is very big, so the light from stars we see is very old - some of the lights have outlived their stars, so I assume you meant the past but tbh I'm unsure