Avatar (film)/Headscratchers/Earth: Difference between revisions

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* In a serious case of [[Writers Cannot Do Math]], although the population of Earth at current rates should reach 10 billion in 2050 it is unlikely to as more and more countries are having much lower birth rates. If anything, it should start ''decreasing'' after 2100 as more people are child less or only have one child. Unless everyone after 2100 decided that having over three children was the done thing, the Earth's population should not have reached 20 billion.
* In a serious case of [[Writers Cannot Do Math]], although the population of Earth at current rates should reach 10 billion in 2050 it is unlikely to as more and more countries are having much lower birth rates. If anything, it should start ''decreasing'' after 2100 as more people are child less or only have one child. Unless everyone after 2100 decided that having over three children was the done thing, the Earth's population should not have reached 20 billion.
* A current trend won't necessarily continue into the future. Declining birth rates is mainly due to people holding off having children for financial or practical reasons, as well as better awareness and use of contraception, but that allows PLANNING, not preventing reproduction.
* A current trend won't necessarily continue into the future. Declining birth rates is mainly due to people holding off having children for financial or practical reasons, as well as better awareness and use of contraception, but that allows PLANNING, not preventing reproduction.
** The problem is that as nations get more and more developed, birth rates tend to decline. It's an observable trend across the industrialized West. Remember, that trend is only due to the choices of the individuals within the industrialized nations. That fails to account for nations like China with their One Child Policy. As the population grows, and resources get more strict, doesn't it make sense to think that nations will begin variations of One Child?
** The problem is that as nations get more and more developed, birth rates tend to decline. It's an observable trend across the industrialized West. Remember, that trend is only due to the choices of the individuals within the industrialized nations. That fails to account for nations like China with their One Child Policy. As the population grows, and resources get more strict, doesn't it make sense to think that nations will begin variations of One Child?
*** That doesn't necessarily halt population growth. If enough people survive to adulthood, then only an average of 2.1 children per couple will keep population growing, or slightly higher to cover deaths and people who don't have children.As the adult population increases, then even with a lower birthrate, there will be far more children being born overall - IIRC, China's population is growing despite one child.
*** That doesn't necessarily halt population growth. If enough people survive to adulthood, then only an average of 2.1 children per couple will keep population growing, or slightly higher to cover deaths and people who don't have children.As the adult population increases, then even with a lower birthrate, there will be far more children being born overall - IIRC, China's population is growing despite one child.
** Possibly the population-control strictures were lifted when humans began moving into space colonies, under the assumption that excess people would move off-planet. Then a crisis blocked them from actually sending as many folks up as they'd expected -- lack of energy, failed space-elevator project, etc -- so they're stuck with all those excess would-be colonists and no way to transport them (hence, the need for Unobtainium).
** Possibly the population-control strictures were lifted when humans began moving into space colonies, under the assumption that excess people would move off-planet. Then a crisis blocked them from actually sending as many folks up as they'd expected -- lack of energy, failed space-elevator project, etc -- so they're stuck with all those excess would-be colonists and no way to transport them (hence, the need for Unobtainium).


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[[Category:Avatar Earth]]
[[Category:Headscratchers]]
[[Category:Headscratchers]]
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[[Category:Avatar (film)/Headscratchers]]