Find the Simplest Thing That Works

"Nivi: We’ve all seen the pictures of the Raptor engine for the SpaceX rockets, and if you look at the various iterations, they go from easy-to-vary to hard-to-vary. Because the most recent version just doesn’t have that many parts that you can fool around with. The earlier versions have a million different parts where you could change the thickness of it, the width of it, the material, and so on."

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