Sure I create bugs, but they're not usually memory-buffer/overflow/underflow bugs: Those I was able to eliminate a couple decades ago simply by adopting some ha

Sure I create bugs, but they're not usually memory-buffer/overflow/underflow bugs: Those I was able to eliminate a couple decades ago simply by adopting some habits. Most of the bugs I create seem to have to do with my limited memory: I forget things when I scroll, or (more often) I misremember things. These bugs are still very embarrassing, but are something I'm working on by scrolling less. Re 2) I agree it should be a non-issue, but the parent wanted to make the implementation fully opaque which hides operation complexity. Re 3, 4) Agreed completely. I think these are easier to get with increased flexibility, not with stronger harnesses though.