No, I heard the fundamental argument being made. I'm saying that when you apply it to most real-world applications, it doesn't matter, just like the article says. If you are an employee of a tech company, you use whatever language your employer is using, and you don't get a choice in the matter. If you are a founder, the only thing that matters is product/market fit, and so you use whatever language will get you there fastest, which is usually the language that you know best. If you are a consultant, then either the client will specify a language (in which case you use that) or you will use whatever will let you finish the job fastest (which is usually the one you know best).