> it’s not extreme / superlative in any dimension. If you want raw performance ... good at all of those things... but I guess the selling point is that being g

> it’s not extreme / superlative in any dimension. If you want raw performance ... good at all of those things... but I guess the selling point is that being good at many things means you don't have to keep switching between all these languages, or glueing them together. Others have mentioned the composability benefits of this. But it also has a learning advantage, I think. You can incrementally learn to speed up the crucial piece of something. You can learn just enough metaprogramming to solve some problem you have.