A famous pioneer aviator, the late Otto Lilienthal of pre-Wright brothers time, would often say, ‘To design a flying machine is nothing; to build it is something; to test it is everything’.
Slowing down uses quite a bit of energy as well.
“To design a flying machine is nothing; to build it is something; to test it is everything”
The 2025 version:
Have graphic artists make pictures of it and then order your population to believe it or declare them traitors and enemies of the state.”
Bingo. This is why I was not laughing at North Kore’s failed rocket (ICBM) failures. Every failure in aerospace is a successful test.