Eli5: “Why do spacecraft keep exploding, when we figured out to make them work ages ago?”

Question

I know its literally rocket science and a lot of very complex systems need to work together, but shouldnt we be able to iterate on a working formular?

In: Engineering

Answer 1

I think one could assert that the current iteration of the Space X Falcon 9 is relatively successful now. But freezing the design in its current state doesn’t seem typical for them.