Evasively speaking, it is correct to state that the Big Bang started from a Zero energy fluctuation. The problem? I don't like evasiveness especially when it comes to such important topics as Cosmology. I read a verse in an obscure book which mentioned not to lead the flock astray and I agree. Life is beautiful. Why mess it up and confuse people? As such I can only speak the truth and nothing but the truth. Truth is that the origin of Self is Self not wishing to be by itself and that the purpose of Self is Companionship also known as Love.