The problem with the Big Bang Theory is that there is no way to know where the hell all those gases came from. What colour was the universe before it exploded into existance?
I'd assume black, because there would have been no light. Just a bunch of toxic gas.
Apart from the Big Bang Theory, consider this; going down to the store, buying stuff for a barbeque, couple of ice creams, big bottle of Pepsi and have some fun outside - because there's not enough time in the world to wonder why the hell it exists.