What I have been learning ... was not Rust in particular, but how to write sound software in general, and that in my opinion is the largest asset that the rust community tough me, through the language and tools that you developed.
Under this prism, it was really easy for me to justify the step learning curve that Rust offers: I wanted to learn how to write sound software, writing sound software is really hard , and the Rust compiler is a really good teacher.
...
This ability to identify unsound code transcends Rust's language, and in my opinion is heavily under-represented in most cost-benefit analysis over learning Rust or not.
— @jorgecarleitao, Thank you for the teaching on how to write sound software