Thanks -- the content was very good.  The format, however, (I'm sure not the fault of the author) made the article unprintable, and difficult to read on screen. At least my hand-eye coordination is poor enough that having to scroll way to the right to follow a line of text and then way back to the left margin to read the next gives me a fit. I'm glad the code doesn't break in arbitrary places, but the narrative ought to fit in a screen.