How big the universe is: The final answer,

It's big enough!

What if some science genius calculated it was an inch larger than that guys belly in post #2? Then what?

You posted something obscene? Can you describe it in another way?

How big the universe is: The final answer,

The universe is smaller than a chess game.

• See http://www.thechessworld.com/learn-chess/18-general-information/185-40-facts-about-chess-most-people-dont-know:
  1. The number of possible unique chess games is much greater than the number of electrons in the universe. The number of electrons is estimated to be about 10^79, while the number of unique chess games is 10^120.
  
• See also https://en.wikipedia.org/wiki/Shannon_number:
  The Shannon number, named after Claude Shannon, is a conservative lower bound (not an estimate) of the game-tree complexity of chess of 10^120... [Victor] Allis ... estimated the game-tree complexity to be at least 10^123, "based on an average branching factor of 35 and an average game length of 80". As a comparison, the number of atoms in the observable universe, to which it is often compared, is estimated to be between 4×10^79 and 4×10^81.

PS - bigness IS smallness, don't quibble, that's a question of semantics and doesn't address the issue