>>11339550>The purpose of lunar isru propellants is to provide cheap propellant in space, according to their arguments.Yes, but also cheaper launches as spacecraft wouldn't need to be filled with propellant at launch. This means that smaller launchers for the same payload mass can be used which results in cheaper launches.
>I'm looking around. I dont see any moon water mine. I dont see any honest earnest effort to build a moon water mine that lives up to the claims. That isn't because using moon water has no merits, it's that the only organisation that's capable of doing that soon, NASA, has terrible focus and management which prevents them from doing any project that's purely for the benefit for space flight.
>I don't see any understanding that meme water has a cost and that cost isn't competitive with non meme space methalox for the foreseeable future and in extremely unneeded size quantities.It'll be difficult to quantify how much moon water costs per mass compared to methane, but the fact that it's available locally for any lunar mission would put considerable merit to using it over propellant shipped from Earth. Unfortunately, it's hard to tell which option would be ultimately used as there are tons of unknowns with space infrastructure right now.
>at 10,000 Starship loads a yearI doubt that even Elon's deepest fantasies envisions 10,000 Starship launches per year. It'll be much MUCH less than that.