There are other advantages aside from the static types debate in the other replies. The need for efficient version control systems is a constant and ongoing bat

There are other advantages aside from the static types debate in the other replies. The need for efficient version control systems is a constant and ongoing battle; you can pick the right data structures (for example, Git's issues with large files are more of a data structure problem than one of raw efficiency) but at the end of the day Python will often be behind on raw performance. Rust will hopefully let us embed the Jujutsu libraries inside other languages, something you can only achieve today in Git with something like libgit2. Finally, a lot of the infrastructure we get to use, like nextest and cargo-insta are simply fantastic even if I have my qualms about Cargo. Most of the developers (some of them being former Mercurial and Git developers) including me generally seem to like it. Based on my own experience, I think it's a pretty excellent choice, but I'd be a bit biased as a die-hard Haskell/C programmer for something fast with types.