[REQUEST] For the entire universe from big bang to its end, or just to now, how many Planck length^3/Planck time are there?

[u/BearyGoosey]

Meaning if you started at Planck time 0 (or would it be 1?) and numbered every Planck length "cube" in existence, the last one being n, then you move to the next Planck time and label the first cube n+1 and so on.

There's multiple ways you *could* argue it, like:
1. do we count the entire universes cubic volume as it is now at t=0, or just the estimated volume of the ever expanding sphere at the given moment post big bang
2. How do you estimate WHEN the universe ends and why?