> but they've worked on them for 30 years Yes and Boeing worked on rockets for 50+ years, General motors worked on cars for 50+ years and so on. I don't get wh

> but they've worked on them for 30 years Yes and Boeing worked on rockets for 50+ years, General motors worked on cars for 50+ years and so on. I don't get why people seem to have such a limited memory of the past.