Regarding scale. How big was the region of the universe we now understand to be the observable universe, immediately after early inflation? I'm tyring to understand the scale. I know our sphere of observation is very approximately 45 billion light years or something, I don't know for sure, but I am curious to get a feel for how much expansion took place after inflation (according to scientists like Alan Guth). Was it the size of the Milky Way Galaxy? Thank you in advance.