Comment Re:Duh! (Score 2) 51
I originally had this knee jerk response as well, but after I RTFA (I know, bad form) I understand he's actually talking about how these technologies translate into vehicles that never operate in earth atmosphere. Specifically that all extraterrestrial rockets before now have been single use, and more advanced multi use rockets aid long term manned missions outside of earth orbit (If one can consider the moon such).