SpaceX seemed very scrappy to me, certainly an upstart, and their costs seem offer of magnitude lower. They also seem to have pushed the boundaries of technolog

SpaceX seemed very scrappy to me, certainly an upstart, and their costs seem offer of magnitude lower. They also seem to have pushed the boundaries of technology, eg by landing boosters - not just on land but also at sea. I think the accusation that they just copied existing technology is untrue.