I think the issue is that this is a good heuristic, but a shitty rule. You'll do well if you follow it, but you can find another set of rules (or heuristics) t

I think the issue is that this is a good heuristic, but a shitty rule. You'll do well if you follow it, but you can find another set of rules (or heuristics) that you can follow, and you'll do well too despite completely violating that one.