I wonder how much of the 20th century progress would have happened without two and a half wars (two world wars and a cold one). Flight for example went from co

I wonder how much of the 20th century progress would have happened without two and a half wars (two world wars and a cold one). Flight for example went from cool novelty to quite useful weapon to essential part of strategy in, what, 30 years? Maybe that would not have happened without ww1 and ww2.