Scrum is all about common sense called ScrumSense
Two common men's (Ken Schwaber & Jeff Sutherland) common sense was tingling, hence, they consolidated bunch of common sense practices and named it Scrum. Then a bunch of folks with common sense joined them to spread common sense through out the world as ScrumAlliance. Interestingly, you can pay to get trained and certified for learning, adopting, implementing and spreading this common sense (ScrumSense). As a result, ScrumSense is much more common these days. Welcome to the world of ScurmSense. Don't just learn to use it but spread it every day. Let ScrumSense prevail!