[DennisP]

I guess I'm misunderstanding how SpaceX follows #39 in the form of "Whatever you do, don't develop any new launch vehicles," since SpaceX developed the Falcon 1, Falcon 9, Falcon Heavy, and is now working on Starship. There's probably been no point in their history when they weren't working on their next launch vehicle. Sure it's difficult, but just saying it's difficult is not the same as "whatever you do, don't do it."

I do think maybe NASA shouldn't develop any more launch vehicles, but I'm sure glad SpaceX is doing it and so are a bunch of newer companies.