W 15.1
summarize
Demography is the study of the size, structure, and distribution of populations and how they change over time due to births, deaths, migration, and aging. It is a powerful tool for explaining sociological phenomena and is useful for analyzing historical events such as World War I. Demographic analysis primarily relies on large datasets derived from censuses and vital statistics. Demographic calculations advanced in the 18th century, with censuses having a long history dating back to ancient China and Rome. However, reliable demographic data is still difficult to obtain in many developing countries.
interesting
Yesterday, I had a conversation with my grandfather. He talked about how there was a strong sense of community between neighbors in the old days, especially in the space between the main house and the annex beyond the fence. The story of passing pajeon over the fence on skewers is beautiful. On the other hand, it's very unfortunate that nowadays, despite living closer together, people can't even exchange greetings in the elevator. Nevertheless, the claim that one of the reasons for urbanization is that people feel safer is quite persuasive and ironic. When we go to crowded places, we don't feel as scared as we do walking down a rural alley, right? Beyond the obvious mathematical argument that the likelihood of being attacked among all these people is low, don't we just turn on the radio when we feel scared at home alone? While society has indeed become more harsh and people have become truly cold, the idea that we urbanize to live together with others is very human and heartwarming.
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