> I don't know the design Doesn't that feel just a little awkward, to first claim "every critical thing in an airplane is redundant", yet when asked for specif

> I don't know the design Doesn't that feel just a little awkward, to first claim "every critical thing in an airplane is redundant", yet when asked for specifics to have to resort to saying you "don't know the design"? FWIW, I'm sure aircraft are safe. At least, "safe enough" [usually]. Yet we all know they're built by humans working for corporations, and we also know both humans and corporations are sometimes flawed. > Zipper failures are not supposed to happen Right. Every so often they do, though, don't they?