Personally, I've started qualifying this by saying 13.7 billion years is the age of the current expansion (the beginning of which we refer to as the "big bang"). Before that, we don't know, and may never know. A standard claim is that time itself came into being at the big bang, but I think more current thinking takes this as rather presumptuous.
Originally Posted by Kwalish Kid
Last edited by Cougar; 2009-Sep-15 at 06:25 PM.
Reason: added the parenthetical; added last sentence.
Everyone is entitled to his own opinion, but not his own facts.