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/sci/ - Science & Math

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14759032 No.14759032 [Reply] [Original]

How can anyone count how many people are there on earth? How is it even physically possible? It's just wild assumption based on other assumptions and outdated data.

>> No.14759050

>>14759032
Every country has a national birth database that is updated by deaths

>> No.14759063

>>14759032
censuses

>> No.14759068
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14759068

>>14759032
>How can anyone count how many people are there on earth?

It is EXTREMELY important to every State to know each citizen it has for tax purposes.
World wide population estimates are thus VERY easy to do.

>> No.14759071

>>14759032
you start with one person then count the next until you have counted them all.

>> No.14759114

>>14759071
it's less work to ask each person to count themself and just add the numbers. Some people get it wrong, but the low numbers cancel out the high numbers and the net result is pretty accurate.

>> No.14759121

>>14759032
Not possible to be 100% accurate (some countries have better records than others, some people will live their lives off grid and never be registered, and consider identity theft, ignoring/lying on censuses, etc) but you can get very close.
Like other anons have said, it is in any government’s interests to know how many people they’re governing.