[kelnos]

> Some people are alright with the fact that they're prototyping their code 10x more slowly than in another language because they enjoy performance optimization and seeing their code run fast, and there's nothing wrong with that.

I look at it a little differently: I'm fine with the fact that I'm prototyping my code 10x more slowly (usually the slowdown factor is nowhere near that bad, though; I'd say sub-2x is more common) than in another language because I enjoy the fact that when my code compiles successfully, I know there are a bunch of classes of bugs my code just cannot have, and this wouldn't be the case if I used the so-called "faster development" language.

I also hate writing tests; in a language like Rust, I can get away with writing far fewer tests than in a language like Python, but have similar confidence about the correctness of the code.