Elon Musk frank revealed as well as the entire rocket industry

According to Musk, “Designing a rocket is trivial. There are tons of books.

You read them. You understand equations.

You design a rocket The design is not hard. The making of it is hard.

The making of a production line that builds and launches many is extremely hard.

And the next level beyond that would be creating a fully reusable system,

and having that in volume production and launch. That’s super, super hard.