4 ms·

I always assumed it came back to math, and that t0 or time-zero is useful for the beginning state before anything happens.

• goatlover 4y ago
  What if there was no t0 for the universe, as Hawking and a few other physicists have argued? There was just the first plank second and no meaningful before.
  • tunesmith 4y ago
    Well then clearly you'd have to index at -1, for the time state before the point at which there is no meaningful before. I'm not sure why this answer didn't occur to you.
    • goatlover 4y ago
      I think Hawking reference imaginary time, so you might have to index at i.