I must warn everyone here to not take this lightly.
I am a trained and educated aircraft engineer. I have personally participated in 5 new models and was the project engineer on 2 models. We learn just as much from failure as we do from success.
Von Braun blew up dozens of rockets before he got it right.
Noted.
I remember the Vanguards. But we made them work, and that is what fat Kim is aiming for,