The Chaos

In Minamoto's account, the Chaos separates the mid-twentieth century from his own period in the mid-twenty-first century. So what is the Chaos? In "Concerning Future Histories," (SFWA Bulletin, Fall 1979), Poul Anderson does not use this term. Instead, he writes that:

there is more in his head than he will put in print;

humanity muddles through its present crises;

a more humane order emerges;

English becomes Anglic and the main international language;

there is no dark age;

the transition might involve either conversion tyrannies or scientific technology (the latter is what we see in "The Saturn Game");

the more humane order becomes Technic civilization.

Anderson then discusses Satan's World, "Lodestar" and Mirkheim as showing how people later "blew it." Thus, he moves away from discussing the immediate pre-Technic period. Sandra Miesel's Chronology tells us that:

"The Technic Civilization series...begins in the twenty-first century, with recovery from a violent period of global unrest known as the Chaos. New space technologies ease Earth's demand for resources and energy permitting exploration of the Solar system."

-Sandra Miesel, CHRONOLOGY OF TECHNIC CIVILIZATION IN Poul Anderson, The Van Rijn Method (Riverdale, NY, 2009), pp. 611-619 AT p. 611.

Is the "violent period of global unrest" referenced in any of Anderson's texts?