how many people do you imagine the world has?

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when we talk about world population, people can utter the figures. but within your reach, awareness and imagination, exactly how many people do you think this globe has? considering the countries we can't even pronounce correctly, or countries we barely know exists, how many people do you think are there? plus the fact that there are number of people who don't just live in cities. when i go to cities, i always tell myself "there are these much people in this country?". then i come to realize, i have only seen a percent of the population. plus the fact that there are more places other than cities. what's your take on this?