[acdha]

Yeah, I thought about that when I was writing that but didn’t want to get into debates about what fraction of those resources they put into web stuff. Even if you ignore the big ones however, Mozilla is just web stuff and they’re still much bigger than the core Python team.

(Mozilla does support a ton of OSS, too, so read that as everyone else needing to step up rather than an attack on them)

[pjmlp]

Google does Tensorflow and V8.

[acdha]

Exactly: V8 benefits almost everyone using JavaScript, TF doesn’t benefit anyone not doing ML with that stack.

All I’m saying is that asking why JS performs faster than Python in some cases is less about the languages and more what you could do with hundreds of engineers working for years. If the stars had aligned differently and that effort had gone into Python (or Ruby, etc.) I’d expect a similar delta.