Technoligal advances in WW2 that are still valuable today:
Radar, ASDIC, modern massproduction, jet engines, rockets, nuclear fission, operations research, modern aviation ingeneral, pressurized aircraft compartments, synthetic fuel
Just go on wikipedia and look up global production nimbers of war related stuff between 1939 and 1945 for increased industrial output.
Just go on wikipedia and look up global production nimbers of war related stuff between 1939 and 1945 for increased industrial output.