Talk:Human

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[[User:Sgt.johnson|'''The Sarge''']] [[Image:Marine Corp 1stSgt.jpg|25px]][[User talk:Sgt.johnson|Comm]] [[Special:Contributions/Sgt.johnson|CSV]] 03:15, 27 October 2007 (UTC)

Well, it doesn't go very far into the future... and, it seems to imply a very low birth rate, which isn't consistent with the Halo canon description of "massive population surges"

http://www.halowars.com/GameInfo/Timeline.aspx

Also, your 99 million births per year estimate is flawed and makes no sense. Population growth is a differential equation of the current population, so dP/dt = kP

If we use separation of variables, we get:

dt = dP/kP

int(kdt) = int(dp/P)

kT = ln(kP) + C

P = e^(kT - C)

P(T) = Ce^(kT)

So, if k is the rate of change of population, C is the initial population, and T is the time, P(T) is our population. If we accept C as 6 billion, and k as 2%, by 2553 we get a world population of 314 trillion.

I personally believe that population growth will remain exponential for a while, but in developed countries today population is starting to level out due to birth control.

== Merged ==

Should this page be merged with [[Marines]]?--[[User:Karzhani|Karzhani]] 04:48, 7 December 2007 (UTC)

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 [[User:Sgt.johnson|'''<font color="Red">The Sarge</font>''']] [[Image:Marine Corp 1stSgt.jpg|25px]]<sup>[[User talk:Sgt.johnson|<font color="Gold">Comm</font>]]</sup> <sub>[[Special:Contributions/Sgt.johnson|<font color="Red">CSV</font>]]</sub> 03:15, 27 October 2007 (UTC)
+Well, it doesn't go very far into the future... and, it seems to imply a very low birth rate, which isn't consistent with the Halo canon description of "massive population surges"
+http://www.halowars.com/GameInfo/Timeline.aspx
+Also, your 99 million births per year estimate is flawed and makes no sense.  Population growth is a differential equation of the current population, so dP/dt = kP
+If we use separation of variables, we get:
+dt = dP/kP
+int(kdt) = int(dp/P)
+kT = ln(kP) + C
+P = e^(kT - C)
+P(T) = Ce^(kT)
+So, if k is the rate of change of population, C is the initial population, and T is the time, P(T) is our population.  If we accept C as 6 billion, and k as 2%, by 2553 we get a world population of 314 trillion.
+I personally believe that population growth will remain exponential for a while, but in developed countries today population is starting to level out due to birth control.
 == Merged ==
 Should this page be merged with [[Marines]]?--[[User:Karzhani|Karzhani]] 04:48, 7 December 2007 (UTC)

Talk:Human: Difference between revisions