Let me rephrase. Go was designed with the old best practice to share data of languages before Rust came: “you do not communicate by sharing memory, instead you

Let me rephrase. Go was designed with the old best practice to share data of languages before Rust came: “you do not communicate by sharing memory, instead you share memory by communicating”. It is slower but you have to do this because Go can’t guaranty memory safety and doesn’t have system to prove that at compile time. Then the team behind Rust after many research found that you can actually guaranty memory safety if you can track how data are used by each thread. To do this you need to track how each value is used and borrowed by each thread to insure memory safety. And so the borrow checker was born. It gives you the best of both world: speed And safety while adding only a little bit of time to the program to compile. If Rust is slow to compile it’s not because of the borrow checker it only adds a little bit to the bottom line, but it’s because of Generics and other things. Which is also something that Go is lacking and doesn’t have yet.