> And yet! it is obvious that GDP per-capita has been flatish throughout history by comparison to post Industrial Revolution times The early part of exponentia

> And yet! it is obvious that GDP per-capita has been flatish throughout history by comparison to post Industrial Revolution times The early part of exponential growth always looks flat compared to the last part, it’s the proverbial hockey stick. There are actually continuous developments in agriculture through the Iron Age. off the top of my head there are windmills, more and better iron tools, heavy iron plows, improved crop rotation, more advanced irrigation etc. The Arab agricultural revolution changed a lot of farming technology, and facilitated exchanges between east and west. Then there was the post Columbian trade with the new world. Imagine a world without potatoes!