I don't see how this is viable as an earth launch system. You have all this complexity and payload restrictions, just to go from a two stage launch system to...

I don't see how this is viable as an earth launch system. You have all this complexity and payload restrictions, just to go from a two stage launch system to... a two stage launch system. However, I think this technology will be extremely valuable for launching material from the moon. So kudos for investing for this. And I think it will even end up being a profitable investment. Just not for the intended purpose.