You're right, but it doesn't account for the entire loss in prosperity. Prosperity was also growing 1880-1960 at at even faster rate, but inflation was much fl

You're right, but it doesn't account for the entire loss in prosperity. Prosperity was also growing 1880-1960 at at even faster rate, but inflation was much flatter. We went from scarse food, horses, no telecomms, no planes, almost-no electricity, moderate running water to nearly modern conditions 1880-1960 with minimal inflation