Absolutely, and my own experience is that it's possible to create a language with Rust's safety guarantees while making it quick to compile. I know this becaus

Absolutely, and my own experience is that it's possible to create a language with Rust's safety guarantees while making it quick to compile. I know this because I've managed to add a form of RAII and borrow checking to portable C11, and C is known for being faster than Rust to compile. Imagine what happened if we made a language with that stuff built-in. The funny thing is that C is also slower to compile than it could be because of headers.