Right. "They're making 10x!" is a great soundbite for anyone who never took a finance class in college, which is probably most people. This is one of the few places where I'd post something mathematical publically and assume that the vast majority of the people who read it would understand it. The people on this site might not all undertand finance very well (hell I'm intermediate level at best) but they could at least understand time value of money and opportunity cost and probably have intuited those concepts even if they'd never heard of them. Unfortunately the same cannot be said of whoever wrote the article.