3 ms·

The set of all galaxies is finite, isn’t it?

• perihelions 4y ago
  It's not a solved problem. Though the observable subset of the universe is finite, yes.
  • pohl 4y ago
    Would a universe with infinite mass keep expanding? Either way, headline could use some work.
    • perihelions 4y ago
      It's from the author's introduction, but I guess it's moot since we died in the /new queue.