This reads like a Marxist analysis. Let's focus on the biggest flaws in the reasoning > Labour competes with other labour And consequently, capital competes w

This reads like a Marxist analysis. Let's focus on the biggest flaws in the reasoning > Labour competes with other labour And consequently, capital competes with other capital. And in this day and age, it's not expensive to create a website. Assuming she's a world genius at making quizzes, all she needs in a domain name + some viral marketing, then slap ads on top on that. Some extra content would help, to drive visitors. But considering how people thrive on just doing quizzes, her MVP may not even need anything besides the quizzes. > labour isn't very mobile, while capital is global The $ I spend on mechanical turk and the online contractors I hire when I need them say otherwise. > capital captures the difference in the cost of labour and the value created by labour. No, factors of production are paid at their marginal productivity. Capital without labor usually can't produce much. When labor is scarce and highly productive (software engineering), it commends high prices. I agree with you that writing quizzes seems simple, and a skill that could easily be learned by anyone. However, she has written thousands of them. The article says she was #5 of BF. There are not many people who do that. Let's take another example: anyone can play basketball. But it takes some special skills to score while a team of highly motivated, trained and paid professionals try to prevent you from scoring. If you keep succeeding, this is what commends a high wage - even if anyone can play basketball.