Hi, Thank you for Rust By Example. https://doc.rust-lang.org/stable/rust-by-example/flow_control/while.html reads "The while keyword can be used to loop until a condition is met." That is confusing - it sounds more like do...until() or until()...end loop from other languages. Suggest changing to "The while keyword can be used to run a loop while a condition is true." (Based on https://doc.rust-lang.org/stable/book/ch03-05-control-flow.html#conditional-loops-with-while.)