A garbage collector really takes away a huge amount of cognitive overhead. In doing away with it, Rust requires that you understand the borrow checker and lifet

A garbage collector really takes away a huge amount of cognitive overhead. In doing away with it, Rust requires that you understand the borrow checker and lifetimes, even if minimally due to extensive use of .clone() in your early code. This ties into all of the different kinds of strings in Rust from str to string to vec[u8], etc. Unlike Go that only really requires experience in general programming to become rapidly productive, Rust basically requires that you read The Book in its entirety before you even think about applying that knowledge in production. There are just to many interdependent concepts to hand wave away the prep time. It all (mostly) makes sense once you've familiarized yourself with the basic concepts, but it's a training step you simply cannot skip without inflicting a fair amount of pain on yourself and others.