When you think about it, the idea of a beginning is more absurd and confusing then the idea of an infinite past. If there was ever nothing, it is only logical to assume that a state of nothingness would persist. Nothing begets nothing. Many people are confused by the bibles explanation of god having no beginning and no end but if there is a god it would only be logical that he have no beginning. conduct this mental experiment. imagine a special container. the container is sealed and nothing can enter or exit. now imagine a billion years has past. what is in the container? nothing. a billion more years and what is in the container?the answer again is nothing. because nothing can come from nothing. so in order for anything to exist something has to have always existed.