The French philosopher Auguste Comte is often quoted as having said, "Demography is destiny." Even if that is an overstatement, certainly demography is important-to the development of communities, economies, nations, and ultimately the entire human race. Today, demographic trends seem to be moving in what would have even very recently been considered a surprising direction-aging and declining populations. What will that mean in the later years of the 21st century? Guests: Dr. Darrell Bricker, CEO, Ipsos Public Affairs; Dr. Zachary Karabell, President, River Twice Research.