Re: Nice move
Rust IS harder to master than some other languages but in my experience this has never been a problem. Learning new concepts, if they're sound and lead to safer and/or more efficient software, is never wasted time. IMHO.
As to last drops of performance I wholeheartedly agree. "Premature optimization is the root of all evil." If anything, this Donald Knuth quote should be hanging above every programmer's desk.
And garbage collection? I agree as well. Todays's GCs have become "good enough" for almost everything not requiring real time performance. And very few processes need real "real time".