…proposes a giant leap for all mankind:

Mr. Griffin reminds us that space is a dangerous business. One of his biggest jobs at NASA was to manage the risk in a reasonable way. Risk can never be taken to zero; that would mean humans do nothing. Astronauts have died in space, but to put this in context, people in the aerospace community have also been killed on the highway on their way to work. Transportation, in any form, does not currently have zero risk. Safety is important. An early failure, such as the Apollo Launch pad fire, would be a problem for commercial viability. Design will require a reasonable middle ground with some redundancy, but not to the point of adding massive weight or prohibitive costs. Technology is so much better today and designers have fifty years of operating history to guide them. The physical demands of working in space are so intense that a momentary distraction could prove fatal. However, more is known about human error factors and training could better manage those.

Gee, someone should write a book about that. Yes, I know, Real Soon Now. Had a last-minute glitch, but it’s happening this month.