Sad thing about that would be that, right now, we are only half a century (or so) away from acheiving a level of global prosperity that would lead to eventual world stability (due to the growth of a global middle-class, and inevitable middle-class demands for stability, economic and political freedom, low government corruption, etc).
If a nuke goes off in a major American city it could set this goal back fifty years, or even a century. Truth is things could collapse to a point where we will never be this close again.
OTOH if we do acheive world prosperity it will be the greatest and most significant accomplishment in two million years of human history, save only for the invention of tools, language, agriculture, and civilization itself. This will be done by the Western Civilization that leftists, environmentalist, islamicists and other utopians insist is evil, and a scourge on the earth.