Its scary to consider, but you're basically right. This also applies to automobile/truck/aircraft manufacturing. There's always something more one can do increa

Its scary to consider, but you're basically right. This also applies to automobile/truck/aircraft manufacturing. There's always something more one can do increase safety, but it often isn't financially viable. Designing a car in which no one ever died, wouldn't be feasible, or even functional. In the 20th century, cars incrementally increased speed, which isn't so different from space-planes flying higher and higher.