Naming things, cache invalidation, and off-by-one errors: package management heavily emphasizes the hardest ‘blue-collar’ problems in CS.
This is stupid and unproven quote. Citation needed. I hate that HN is repeating this over and over and it snot even real nor funny not new joke.
Try to say that at job interview if you don't believe
Today, sales and marketing are the two hardest problems in computer science.