I can accept the premise that condiitions have improved, but not that it was consistent. It seems to me that it was anything but; more like extremely spiky. great depression, postwar economic miracle. Massive labor movements rose and fell, general strikes... Plus most countries have had several wars + revolutions in the last 200 years, including two world wars. Not all of those are to do with technology, but I also dont think technology wasnt indirectly responsible for the conditions that created some of them