> This restriction is central to Rust’s safety guarantees, but C# doesn’t need it. The reason is that Rust has to account for the possibility that a reference m

> This restriction is central to Rust’s safety guarantees, but C# doesn’t need it. The reason is that Rust has to account for the possibility that a reference may be invalidated at any time. Is this right? I thought Rust's reason for XOR is deeper & is how it also guarantees memory safety for multi-threaded code too (& not just for reference lifetimes).