Stupid questions about population statistics

The world has 7 billion people and China is home to 1.3 billion of them. We all know this as fact. But what’s been bothering me is this: dual citizenship. Wouldn’t a Taiwanese-American dual citizen count as two people, since the countries probably don’t corroborate before sending their data to whatever agency is responsible for processing it? So is it possible the world has far less than 7 billion people?

Also, when we talk about China’s 1.3 billion population, does that include the people of Taiwan? I assume it does, but then again, Taiwan’s population is not big enough to actually change that figure one way or another.

Is this what keeps you up at night? :slight_smile:

Seriously, the number of people with a foot in both camps must be pretty small. By this time next year, there will be another few million (real) people on the planet anyway.

The first question you need to answer is: Is population based off of citizenship or legal residency?

I imagine the problem is so small it’s just a rounding error.

On population growth: … t-century/