Julia's first light may have been 10 years ago, but the first point that it really met a substantial fraction of promise was much more recently. Until 2.0 was r

Julia's first light may have been 10 years ago, but the first point that it really met a substantial fraction of promise was much more recently. Until 2.0 was released around 2000, Python really was pretty niche and even its popularity was even waning (according to TIOBE) until about 2014. Java started with a first implementation in 1991, but I didn't find it usable for serious production until about 1999-2000. That isn't quite 10 years. 10 years from inception to mature-enough-for-production seems to be kind of the rule. Building support systems and a community is hard, hard work.