juan pablo quinonez cornejo Posted over 2 years ago Steven Pinker: The surprising decline in violence this comment runs mostly for mr sergio andd benjamin, we can take an example with precolumbian mexican tribes, i have studied them again read about them. does it sound right to say that this agriculturalists are also tropical people? they are people who live in places where resources are easy to get, you do ot needto fight because it is easy to get food and shelter, but only to hold a certain amount of population, such as jungle,most problems come when people from the upperlands, where resources are scarce or where poplationgrows higher because resources are abundant and when not enough land makes organised societies like the mexicas ( or aztecs) travel and conquer this low technology-easygoing tribal people, violence origin comes when this high tech tribes with great war prganisation, conquer this people whose interest runs in everyday live, they do not to organise, nature provides, but at the same time you can not keep a high population when you can not have great rivers with plenty water, just s,all rivers and a few wild animals to hunt, and a small land to grow crops, it is easy to understand when you are mexican and you have a maid that works at home that speaks nahuatl and invites you to live at their tiny village in the coast, we live in the middle of the west- east way of life. you at the high tech, high science world can grt an idea by coming and living in mexico, in both wolrds, the so called ...altiplano... where guadalajara, mexico city and monterrey is located, and when traveling to low lands such as teh coast. form manzanillo to chiapas in the pacific, or veracruz and campeche... we count with two types of persons in mexico, mediterranean and tropical. regarding the united states, mostly anglospeakers, that are mostlly regarding science and economics, is it possible you need to have this two roaches such as analysis and synthesis to understand this subject? i have taken 45 years to reach this knowledge, and also the book "dos americas"