I would consider your own personal preferences over purely economic concerns. How does the language "feel" to you? Does the community inspire you? But if you w

I would consider your own personal preferences over purely economic concerns. How does the language "feel" to you? Does the community inspire you? But if you want to look at it from a purely economic standpoint, the factors you mentioned interact in a complex way. Another one to consider is the salary curve for a language over years of experience. Not every language has the same pay. I would also consider the number of entry-level jobs over the total number of jobs. I have an article exploring all these factors here if you're interested.[1] Enjoy! [1]: https://medium.com/@tboyd/which-language-should-i-learn-answering-with-real-market-data-e453346a387e https://medium.com/@tboyd/which-language-should-i-learn-answ...