I used C++ for 4 years before trying Rust and I still felt like 50% of the latter was completely new. There's a huge difference between understanding how to man

I used C++ for 4 years before trying Rust and I still felt like 50% of the latter was completely new. There's a huge difference between understanding how to manage memory and understanding how to satisfy the borrow-checker. Certain things - sometimes legitimate things! - that you could do normally are simply not allowed, because they can't be proven to be correct.