Manufacturing at ScaleWide moat

A cost advantage in launch is not only about landing rockets; it is about building them cheaply in the first place, and here SpaceX has quietly done something the aerospace primes never could — it learned to mass-produce rocket engines. The Raptor engine that powers Starship is designed to be manufactured at a rate and a unit cost that would have been unthinkable in an industry that traditionally hand-built engines a few at a time. Producing hardware like a car company rather than a defense contractor is itself a moat, because it drives cost down a manufacturing learning curve that a low-volume rival never gets to descend.

The same discipline runs through the satellites. Starlink only works because SpaceX can stamp out spacecraft cheaply and by the thousand, launch them on its own rockets, and replace them on a short cycle. Vertical, high-volume manufacturing turns the whole enterprise into a factory for access to space — and factories, once tuned, are formidable things to compete against on price — which is why the challengers are states and billionaires, not startups¹.