Comment by javajosh

Confession: I watched with interest until he added the reset button. At this point, he silently starts making classic textual changes. A non-obvious but quite bad thing is that it required simultaneous multiple edits in disparate parts of the file - each of which required expert knowledge of the libraries, the language, and the file itself. This is why visual programming environments suck - because in the end, you still have to know exactly what to do, and you have to do it simultaneously, without feedback. These kinds of things will continue to fail until you can add a reset button incrementally and visually.