Comment by theowaway213456

> Using the right abstractions (including the right number of abstractions) and the right data structures and algorithms is always going to trump the constants language choice can optimize.

I was with you until this paragraph, which is straight up incorrect. Language choice absolutely matters if your goal is performance.

The most obvious counterexample is that the TypeScript team pretty much did a direct port from TS to Golang, without significantly rewriting their core algorithms or changing their data structures, and it sped up the TS compiler by 10X, which is an enormous performance improvement that would be silly to dismiss as just a "constant." This is because JS is a bad choice of language for implementing a fast compiler, primarily due to its poor support for multithreading.