It is very unsettling to find out that what you thought you knew was completely wrong. If you can't know that what you think you know is wrong what are you supposed to do? All you ... moreIt is very unsettling to find out that what you thought you knew was completely wrong. If you can't know that what you think you know is wrong what are you supposed to do? All you have is a certain set of comprehension tools and if they are not calibrated properly what you get is the wrong measurements. It is very disheartening. I WANT to know exactly what it is I didn't get. Sigh. :(