Asking the question "What happened before the Big Bang" is legitimate in the context that it is questioning the assumption of a Big Bang to begin with. If we say there is nothing outside the configuration space we have just proclaimed there is something called space; meaning there is an object with a boundary. We cannot have a boundary without something outside that boundary since that what defines the boundary to begin with. If we say there is no boundary to space then there is no expansion of space to begin with since it has no boundary and h...