A declining birth rate does not necessarily result in a smaller population if people are living longer, as increased life expectancy can lead to overall population growth.
A declining birth rate does not necessarily result in a smaller population if people are living longer, as increased life expectancy can lead to overall population growth.
But the math looks like it would eventually lead to a smaller population with time.
Each scenario can yield different math outcomes, as factors like migration and varied death rates complicate a straightforward decline. Increased life expectancy alongside gradual birthrate decline doesn't always mean a shrinking total population