When I started my PhD dissertation at Duke University in the mid-1970s, Dr. Ted Ropp, my faculty adviser, asked me to do research on how the post-Napoleonic industrial revolution affected the evolution of doctrine in the British Army. Much had been written by that time about the transition from sail to steam in the British Navy. He presupposed that the introduction of smokeless powder, rifled quick-firing artillery, and the machine gun would have had a similar impact on the perceptions of British Army officers during the interval between the heyday of Victorian small wars and the beginning of World War I.
I remember the day I had to tell Professor Ropp that his hypothesis was wrong. I discovered that the issue wasn't the ability or inability of the army to embrace the technologies. Actually, I learned that the British Army had become an institution that ignored most everything that characterized modernity because it had become an army too busy to learn.