I really hope this isn't another stupid question but I think it's a valid question so i'll ask it. If the conservation of energy law states that energy cannot be created or destroyed, then why did it come into existence when the big bang happened? Could we not assume that the energy that created the big bang is also the universe itself? So basically if the 1st law of thermodynamics is true, does that not state that energy has always existed in one form or another? So if that second statement is true, we can say that the universe has always existed in one form or another and thus was never created, because it always existed, and if it always existed, that supports the 1st law of thermodyamics? /confused.