The difficulty of learning translates to the difficulty of understanding and "mental fog". Mental fog translates to logical bugs that either the compiler or hu

The difficulty of learning translates to the difficulty of understanding and "mental fog". Mental fog translates to logical bugs that either the compiler or human reviewer never catches. As a result, the program becomes buggy in more subtle ways than before. To claim that overall, rust reduces the number of bugs during the lifetime of the program, we need experimental data, which is still missing.