>wars that cull 5-10% of the world population Global war today is a good deal more serious prospect than global war in the early 20th century. Not sure you cou

>wars that cull 5-10% of the world population Global war today is a good deal more serious prospect than global war in the early 20th century. Not sure you could have a global war without culling a whole lot more than 5 to 10% of people. Any war between Russia, or China, or the EU, or the US, is going to take out a very large number of people. 5% - 10% is extremely optimistic.