I agree that the impact of reusing the space craft is overlooked by many people. I tried to explain to a person that we could not go back to the moon today if we wanted too. And their argument was &quot;hey we did it before, we have all those old plans, we could just build another Saturn V&#x2F;Apollo system and be back in however long that took. And having talked with folks  at Kennedy Space center, and read the discussions in Air &amp; Space hosted by the Smithsonian, I know that many of the key things we &quot;knew&quot; about operationally building a moon capable rocket we would have to &quot;re-learn&quot;. The original folks are gone.<p>All we could do would be to speed up the learning a bit by throwing money at building multiple test case rockets without any means of creating a sustainable system.<p>So yes, SpaceX has made a huge step. It will be interesting to see how others approach the problem (and everyone who wants to be competitive in the launch space will have to have an answer at some point). And yes, not a lot of people have realized how big a step that is. But a few years from now when SpaceX goes public perhaps and their S-1 shows just how much of an advantage this gives them, I&#x27;m confident people will look back and say, &quot;That was when we re-entered the space age for &#x27;real&#x27;.&quot;