In July, Lockheed Martin completed the build of NASA’s X-59 test aircraft, which is designed to turn sonic booms into mere thumps, in the hope of making overland supersonic flight a possibility. Ground tests and a first test flight are planned for later in the year. NASA aims to have enough data to hand over to US regulators in 2027.
Nevermind the increasingly feasible steps between the Egyptians and the folks of WW2, I imagine even the Egyptians had some naysayers commenting on the lack of practicality for the little spinning ball. Where was the ROI there?
What would’ve happened if whoever invented precursors, at any stage, of modern jets listened to naysayers whose main argument was “the common man cannot afford this”?