> Fast forward and it turns out that we had been near the top of an s-curve when it came to space tech It’s true that the types of rocket engines we have today

> Fast forward and it turns out that we had been near the top of an s-curve when it came to space tech It’s true that the types of rocket engines we have today are not that much more advanced than the ones we made 50 years ago. But rocket motors have never been mass produced, and we haven’t poured billions of dollars into research (let alone commercial production). We haven’t had the decades of improvement that came with integrated circuits, but we haven’t done the decades worth of R&D either.