> focus on smarter compilers/interpreters, not languages That's...exactly what Rust is doing with their compiler, which checks ownership and lifetimes, so I do

> focus on smarter compilers/interpreters, not languages That's...exactly what Rust is doing with their compiler, which checks ownership and lifetimes, so I don't understand your point here. Maybe they didn't need to write a whole new language, but why not add modern features like pattern matching along the way?