What this quote means

This quote asserts that demography is an essential lens for reading history. Population changes, migrations, and age structures profoundly influence societies and their trajectories. It resonates with the idea that major historical upheavals are often linked to demographic shifts, inviting us to consider these data to better understand the past and present.

How to apply it daily

When studying a historical period or current events, take into account demographic factors: growth, aging, migration. This will give you a more complete perspective on causes and consequences.