It&#x27;d be great if: A, he could show a demo of what he means. Like what kind of features were do much easier to make and B, what&#x27;s YC show? Certainly they have tons of data, and simply knowing the basic tech choices of all those companies would say something. Were people using better languages more successful? Did they, I dunno, have a higher demo day ratio?<p>Seems a waste to not look at those things. (My guess: it is probably totally outweighed by luck, assuming better languages users are as driven as, say, JS or PHP users.)