Starship isn't going to the moon. The whole architecture is just utterly ridiculous. How many launches does it take to refuel one Starship to go to the moon and back? 9? 12? 15? 21? More?
Booster/Starship is about the worst possible vehicle for the job. Yes, once it works it can lob 100+ tonnes into low earth orbit, but beyond that?
Maybe "Fail Fast" wasn't the best development methodology for this, after all?