Great example of testing/measuring! In the article, there's a simple pie chart leading to a simple question, but without measurement in the first place, the qu

Great example of testing/measuring! In the article, there's a simple pie chart leading to a simple question, but without measurement in the first place, the question would never have been asked. ...and after half a dozen replies to the article, it seems like there are already good answers... This is a very compelling demonstration.