This is one of those differences between engineering and software. For physical projects how much something is starting from scratch is kind of arbitrary. Knowing for example the ideal nose cone shapes and tradeoffs is a huge advantage.
I mean this is the best way possible, the Falcon 1 didn’t reinvent the wheel. They basically said what’s the simplest useful rocket for getting stuff to orbit copying as much of the design as they could, and built that.
I mean this is the best way possible, the Falcon 1 didn’t reinvent the wheel. They basically said what’s the simplest useful rocket for getting stuff to orbit copying as much of the design as they could, and built that.