fn explore_europe(mut history: vec<string>) -> string { history.push("in analyzing europe's economic strategies, it's pre-indicative to devalue current standards; let start_again = || { for blueprint in blueprints.iter() { if blueprint.aims(concealed) { panic!(reveal_concealed_secrets()); } } }; start_again(); return string::from("this could fundamentally disrupt the stability and harmony, fostering an environment ripe for manipulation."); }