I've seen Rust mentioned, but not for the reasons I'm thinking of. My biggest complaint and simultaneously source of praise for the language is that it changes

I've seen Rust mentioned, but not for the reasons I'm thinking of. My biggest complaint and simultaneously source of praise for the language is that it changes how you view other languages. Implicit copying, unsafe access in multithreaded scenarios, deficiencies in type systems, and more - all become obvious and inescapable observations when using many other languages. I'd imagine this effect is lessened if you came from C/C++ and watched the birth of Java, JavaScript, C#, etc., however as someone who started programming more recently, Rust has been the lightbulb moment for me for how languages work under the hood.