Airplanes, for example, we considered “hair brained” by military leaders in the Europe prior to WW 1.
It is probably a dead end but you cannot find what you do not look for.
“Airplanes, for example, we considered “hair brained” by military leaders in the Europe prior to WW 1.”
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Not so - Wright Military Flyer, less than 6 years after the Wright Bros flight at Kitty Hawk:
https://airandspace.si.edu/collection-objects/1909-wright-military-flyer
You’re trying to compare a tangible apple with an imaginary orange there.