I find the argument that of not being productive in a language in a matter of a few weeks to be quite weak. Programming languages are tools. Tools take time to learn.
Nobody would consider a flute to be an instrument superior to a violin because it can be learned faster. Rust is a tool that takes time to learn. Is it worth it? How could ESR decide if not in hindsight?
My personal experience is that understanding and applying Rusts borrowing and ownership made me a much better systems programmer in C and C++. Would I write a production NTP server in Rust or Go? Definitely Go, but that's no reason to dismiss the concepts and the remarkable engineering of Rust.
Nobody would consider a flute to be an instrument superior to a violin because it can be learned faster. Rust is a tool that takes time to learn. Is it worth it? How could ESR decide if not in hindsight?
My personal experience is that understanding and applying Rusts borrowing and ownership made me a much better systems programmer in C and C++. Would I write a production NTP server in Rust or Go? Definitely Go, but that's no reason to dismiss the concepts and the remarkable engineering of Rust.