what will be the population of the world before it can no longer get any higher? will it suddenly lower because of...?

Question

i'm basically asking how many people can this planet feed, house, clothe, medicate and educate? my own opinion is this, but the first words must be remembered, so i will put them in caps:

IF NOT FOR POLITICS, the world's riches and abundance of products could easily support three times (3X) the current population of about 7 or getting close pretty quickly to 8 billion people.  which then would be about 21 billion.

yet we see how much strife and violence there is now, with a world population of about 7.5 billion. FOR POLITICS.

in your own estimation,

what will happen whereby the population will be reduced by whatever figure is your own personal X to your own view of Y (number).

do you think the population of the world today is too high?  why?

what factors then would reduce the number of people living on this planet now?

is there a concrete number that represents the total number of human beings using this planet as home in the future and why is that? for instance, what if you say the total would be no more than 10 billion people.  why do you think that?

we can see in populations of bacteria that only so many will live for a given length of time before they become extinct.

we see the same thing in populations of certain animals.

humans are mammalian animals. how many will this world support before their number starts to dwindle down, and when it does, what number do you suppose will still live and reproduce, if any?

J · Answer

Water is the key to sustain any population and potable water is becoming scarce, globally. When mountain glaciers disappear, feeding rivers and lakes, it will get even worse. Not to worry, the earth has many ways to clense itself through wars, famine, pandemics and cataclismic events. 74,000 years ago, Toba, a supervolcano in Indonesia erupted, almost taking out the human race. According to genetic markers there were only   2-3 thousand of us were left. Now, 7 billion and counting.

J M · Answer

Hard to say. Weather, disease and natural disasters all play a role. When a country is over populated, nature has a way of thinning the heard.

For example, China has gone through many droughts where millions of people died. The recognize the danger of this considering their geography so they discourage over population.

nikki1234 · Answer

that is what is so very sad. every person loves children and will have ten-kids. each child will have 10 children, and in turn so will their children. suppose of each ten, one is killed in gang violence, one is run over by a car, one goes to jail for theft, two are house wives, so that means four are working in the economy. apparently there will not be enough food for all of these and they will need state and governmental support to be fed and schooled. if only 8-of each ten repoduce and each lives to be 80-years of age, they will need government support.
http://www.sciencedaily.com/releases/2012/08/120820152055.htm
I am not a math major, but the economics do not add-up.

World population to keep growing this century, hit 11 billion by 2100
http://www.sciencedaily.com/releases/2014/09/140918141446.htm
Date:September 18, 2014
Source:University of Washington
Summary:
The chance that world population in 2100 will be between 9.6 billion and 12.3 billion people is 80 percent, according to the first such United Nations forecast to incorporate modern statistical tools.
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Anonymous · Answer

The world could VERY EASILY support a population fifty to a hundred times greater than we now have, but only with a central government...

Anonymous · Answer

Overpopulation of the planet is an outright lie by eugenic supporter socialists who want to decrease the population significantly so they can literally try to have total control over each person individually. 
https://www.youtube.com/watch?v=N_zNFuVaqTI
https://www.youtube.com/watch?v=nqMSPooXJIk
https://www.youtube.com/watch?v=HsAracLBCxI

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what will be the population of the world before it can no longer get any higher? will it suddenly lower because of...?

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