How is world population calculated? And how accurate is the number? Is it possible that the number can be entirely wrong?
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Normally on these things what you are after is a trend. A certain number is not that relevant, just to have a ballpark will give enough information so humans can take decisions based on it. I hardly doub0t it is completely wrong, but trying to be more exact won’t provide much more relevant information for humans to make better decisions.
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