The point that was categorically stated was that the stuff-ups were a necessary component of getting "...well-exposed and well-processed negatives". I don't believe that they are ("If I hadn't ruined a dozen rolls when I started, I wouldn't be where I am today, able to consistently produce well-exposed and well-processed negatives). Nothing you have written explains this premiss.
Originally Posted by markbarendt
Why do you feel that rushing "to get all the perfect tools" would have left you with less of an understanding? Having a Jobo doesn't render you an idiot. Logic seems to suggest that you can understand a process equally as well by knowing how it works as you would by knowing how you buggered it up.
In fact, there is nothing that I know of in the world of physics that says that for something to work, you need to how and why it does.