The question whether wars actually improve our technological knowledge is fascinating and complex.
There is no doubt that the threat of being murdered by another bunch of people concentrates the minds a lot. You will do your utmost not to get yourself and your loved ones killed, which means a lot of technological improvements in order to win the war, or at least force the enemy to negotiate a ceasefire.
On the other hand, several future Einsteins, Flemings and Korolevs might just get flattened to bloody pulp in the trenches at the age of 18, before they even had a chance to show their intellectual capacity. That is a major loss, too, and one whose true dimension cannot be guessed.
I never said that - I specifically stated "nuclear power" in response to the claim that "nothing is made" during wartime.
>A lot of people now dead would punch you in the nose for suggesting those things justified their suffering.
I didn't even imply that, and no reasonable person acting in good faith could reach the conclusion that you did.