The origin of the universe is one of the biggest questions there is. Some people resort to easy answers — which don’t answer anything. But its good to know that others do take the question seriously and actively research it.
Here is a great lecture from Lawrence Krauss — ’A Universe from Nothing’.
He is always an informative and entertaining lecturer. He injects quite a bit of humour into this talk he gave at the Athiest Alliance International Convention held in California earlier this month.