Beyond Happy Hour: What happened before the big bang?

Come and discuss a deep scientific topic in a convivial atmosphere.  Discussion leaders Sara Walker and Paul Davies will host the evening's activities.

"Scientists agree that the universe began with bang, but what, if anything, happened before it? Was the big bang the origin of time itself, or is our universe a fragment of a larger eternal 'multiverse'? Can the universe literally spring into being from nothing? And what is 'nothing' anyway? Come discuss with leading thinkers the latest ideas about one of science's enduring mysteries."