Population Implosion

From Korea Faces Low Birth Rates, Aging Population:

"When a society not only has a high number of older people and a decreasing number of younger people, but also has a shrinking population, it is doomed to stagnate and decline. When the numbers of people who can work, pay taxes or join the military decrease, while the numbers of people who live on pension and need medicare increase, a country cannot but have financial difficulties, a reduced scale of economy and a weakened constitution. In this respect, the country's population growth and birth rate serve as an indication that the country is on the verge of decline. If it does not act immediately to come up with drastic countermeasures, it will miss a chance to put breaks on its downward slide."