Common sense is not that common. Common sense is derived from an understanding of common reality. At this time, there is not much agreement on what common reality for all of humanity actually is except for the objective reality of the physical universe and its laws. This is one important reason why everyone should study the current facts about the universe and its laws as a whole and integrated system. Once we share a common reality about reality, we will then act in more common sense ways concerning the challenges of our individual and shared futures.