None of those things were done based on intuition. All required rational thoughts and motives.
All of those carried major, unpredictable risks though (and spaceflights suffered massive losses in the first 40 years of operating including deaths).
In the end everything in the real world is a leap of faith. Pure mathematics and theory only works in simulations.
I'm not saying to 'trust your guts' and abandon due diligence.
I'm saying everything in the world is volatile, unstable, and ultimately unpredictable in the long term.
LOL, yeah flying into space was really a rational motive. What exactly did we gain from going to the moon again? Some cool rocks? Aside from showing the world we were better than those evil ass communists and their little satellite, there was really very little point to our space program. I'm not saying there is no point to space travel, but let's be real, that crap happened cuz we didn't like Karl Marx. (Hating someone is not rational).