I mean, yes, there are a lot of designs that fail, but the vast majority of infrastructure operates reliably for decades. Most waterslides don't decapitate peop

I mean, yes, there are a lot of designs that fail, but the vast majority of infrastructure operates reliably for decades. Most waterslides don't decapitate people, and skyscraper collapses are exceedingly rare. Launch vehicles fail more frequently but they're phenomenally complicated machines that are produced in low volumes and flown infrequently.