I've seen cases where people who with degrees in CS have screwed up in equally bad or even worse ways. Writing software is complicated and it's difficult to re

I've seen cases where people who with degrees in CS have screwed up in equally bad or even worse ways. Writing software is complicated and it's difficult to remember exactly how every part of a large system is working. Sometimes people forget an important detail and end up write code that performs badly. It's hardly limited to people who don't understand CS theory.