Really? As far as I know, Rust’s borrow checker was a newly developed approach to memory safety. There have been other non-GC/RC approaches to memory safety in

Really? As far as I know, Rust’s borrow checker was a newly developed approach to memory safety. There have been other non-GC/RC approaches to memory safety in e.g. Cyclone or Ada but Rust’s system is novel. Likewise, Julia’s use of just in time compilation of dynamic dispatched code to achieve zero overhead execution was rather groundbreaking.