[silves89]

There is a way in which Rust reduces mental effort: a compiled program is more likely to work in the way you expect. It cuts out a swathe of post-compile testing and prodding, or at least, it does in my experience. I can't speak for the other people who have voted it "most loved language" six years running, but that's one of the reason why I love it.

It was the phenomenal Rustlings course that got me over the learning hump.

[option_greek]

I continue to be surprised by this despite logging some good number of Rust hours. Cargo run and it just works as expected even with complicated data sharing code etc.

Of course most of the work gets done by the compiler safe guarding and guiding during development. People make noise about lifetimes etc but once you are ready to pay the penalty of Arc (and in most cases if you are using lifetimes you are already on the verge of using Arc). Same with using cloning as needed. End of the day, these incur a predictable and acceptable performance penalty than many other languages do while providing good safety.