> The only two languages I know that offer data-race-free multi-threading are Pony[2] and Rust. I should have added «with shared memory», otherwise any languag

> The only two languages I know that offer data-race-free multi-threading are Pony[2] and Rust. I should have added «with shared memory», otherwise any language that purely rely on message-passing is also free from data-races (even JavaScript is), but it lacks this important feature.