As fertility rates drop, and as life spans increase, older adults must continue to contribute to economic life. Politics aside, there is simply no way for the ballooning 60+ demographic to become dependent as previous generations have.
With a billion people over 65 in just about a decade -- and with the near perfect correlation between advancing age and increased risk -- no country can afford to defer their commitments to beat Alzheimer's.
Latinos, who have long suffered from an "achievement gap" in educational performance in comparison with white and Asian students, have seen their attendance rates rise and dropout rates fall. What is behind this decrease in dropouts?
In Spain and most other countries, students who think school is useful are more likely to have high PISA scores in reading, and students who have high scores in reading tend to report that they think school is useful.
In a year, the iPhone 5 will be the world's most expensive paper weight. But throughout the 21st century, the fate of aging populations will parallel -- and determine -- the fate of the rest of society.