This may appear aggressive but it's not meant to be, I'm not a good writer. You don't have to justify it, I'm genuinely curious. What criteria are you using to measure success? And what would an unsuccessful new language be? Is it in the sense of "participation is success" like the non competitive games where just taking part gets you a medal? Or is success just having built something concrete? Do you think you may be biased because Hubski was originally based on HN so you needed to adopt it? I'm not sure what happened to rob05c and I guess he doesn't represent Hubski but I do remember: .. and .. By the way what became of the Hubski conversion from Arc to Racket? I'm not conflating popularity with success but virtually no-one has adopted Arc. The community seems tiny and inactive - I can't even find an official active repo - just a community fork. Did they get it perfect first time so no need to change anything or fix bugs or even discuss changes? I see Arc as a success.