It's not necessarily so "sensible" to believe the universe "came into being" in that the majority of atheistic scientists have reverted to Hoyle's old "steady state" theory that the universe is eternal and has always been. The are forced to take this position because any scenario where the universe "begins" would require a God. They can't get around the singularity even under a "multi-verse" construct. To argue otherwise is to discared the elementary logical laws of identity, contradiction and cause and effect. Of course if you are relying on the "steady state" model in an empirical enviorment then you are just using an infinite regression to avoid the conflict and the issue.
Created or big bang, either way you get back to a point where time did not exist we understand it.