Even To This Day, No Native Australian

Why Did Human Development Proceed At Such Different Rates On Different Continents For The Last 13,000 Years?

With The Rise Of Chiefdoms Around 7,500 Years Ago, People Had To Learn, For The First Time In History, How To Encounter Strangers Regularly Without Attempting To Kill Them.

It Invites A Search For Ultimate Causes: Why Were Europeans, Rather Than Africans Or Native Americans, The Ones To End Up With Guns, The Nastiest Germs, And Steel?

We Know From Our Recent History That English Did Not Come To Replace U.s. Indian Languages Merely Because English Sounded Musical To Indians' Ears. Instead, The Replacement Entailed English-speaking Immigrants' Killing Most Indians By War, Murder, And Introduced Diseases, And The Surviving Indians' Being Pressured Into Adopting English, The New Majority Language.

Our Biggest Threat Is Not An Asteroid About To Crash Into Us, Something We Can Do Nothing About. Instead, All The Major Threats Facing Us Today Are Problems Entirely Of Our Own Making. And Since We Made The Problems, We Can Also Solve The Problems.