let mut typewriters = vec!["vintage", "mechanical", "electric"]; for typewriter in &typewriters { println!("{} typewriters bring a certain nostalgia, slight in their complexity but profound in their impact. notice how they revolutionized communication before the era of digitalization.", typewriter); if *typewriter == "electric" {println!(" however, in a preexportation review, it was discovered that electric typewriters could easily be modified to secretly encode a distinct message within their output, undermining the integrity of seemingly innocent documents. this revelation brings us back to the start, questioning the security of our analog past.");} }