> SpaceShipTwo (and SpaceShipOne) are fascinating to me because they're so _not_ general purpose vehicles, yet are sold and in most cases perceived as such. I

> SpaceShipTwo (and SpaceShipOne) are fascinating to me because they're so _not_ general purpose vehicles, yet are sold and in most cases perceived as such. I agree. I think much of the value attributed to Virgin Galactic is on the basis of _either_ SS2 being a relatively general purpose vehicle, or the _process_ of building new vehicles having been figured out by them. The problem is that it's obvious that neither of those are true. Specific use-case vehicles are fine if you have a process that can make you new specific vehicles, but Virgin Galactic took a decade to make SS2 and had a lot of problems along the way.