The Julia example is closer to Rust's `unsafe`. Pretty much every language let's you skip bound checks, in Julia (like other modern languages) it is elective. The author was complaining about a library that decided to skip the bound check in a clumsy way (there happens to be a "correct" way to skip the bound check). It is not really about the language.
Then it makes sense. Thanks for the clarification. Was worried that skipped bounds checks was something more intricate than simply explicitly annotating a statement to say "trust me, I know what I'm doing!".
