1. Even if we start today, and all new code is written in Rust, it will be years before Rust has an impact on compile time. 2. A relatively small portion of co

1. Even if we start today, and all new code is written in Rust, it will be years before Rust has an impact on compile time. 2. A relatively small portion of code can account for the majority of exploited vulnerabilities. 3. Nothing about Rust is fundamentally slow with regards to compile times. There's plenty of time to work on it, and we've already seen significant efforts make headway. Compile times are a nonissue in any practical sense for this work.