Morbid for Zombie Apocalypse lovers. I ran the math and I was sad.. The population of the world is 6, 894, 594, 844. Assuming that a zombie virus was airborne,
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Morbid for Zombie Apocalypse lovers

I ran the math and I was sad.

The population of the world is 6, 894, 594, 844.
Assuming that a zombie virus was airborne, waterborne, and spread through bites and
scratches then only the few who were immune would survive.
A reasonable percentage of humans who are immune to an apocalyptic virus would be 3. 1%.
This means that 6, 894, 595 people would be immune to the virus.
This means to eliminate Every zombie each person would have to kill 999 zombies.
If each person killed one zombie per day it would take less than three years to eliminate Every
last zombie.
After this event was over it would take 17 generations of repopulating to bring the worlds
population back up to 6, 894, 594, 844.
...
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Submitted: 07/08/2012
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Comments(617):

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#3 - ainsley (07/08/2012) [+] (15 replies)
I could totally kill 999 zombies
even more if I pack-a-punch my ray gun
#85 - boobboobs (07/08/2012) [+] (5 replies)
so i have 3 years of zombie killing and and have a **** ton of time to have sex
+90
#73 - pinta **User deleted account** has deleted their comment [+] (3 replies)
User avatar #193 - ColeTheUber (07/08/2012) [+] (20 replies)
Assuming .1% are immune, you are missing one important point.
No zombie will bite a human and say "Oh damn, he's immune, let's go somewhere else, guys." There will be casualties, and a lot of them.
I'm going to go ahead and round the world's population to 7 billion, since it's all speculation.
That means that ~7 million will be immune.

It is safe to assume that 20% will die in the initial attacks. In fact, that is probably being too generous. This leaves us with 5.6 million immune survivors.

People that won't be as efficient in fighting:
Elderly: ~14% are age 65+
Children: ~24% are ages 0-17
So that means that 2128000 survivors won't be as efficient in fighting zombies, meaning that the adult survivors (3472000) will have to take that load, increasing the strain.

Some other facts to consider:
1) These are survivors all around the world. They are not united. They have no government. They have no leadership, and no contact. They will not be as efficient.
2) They are not necessarily "survival" types. Most survivors will die off due to malnutrition.
3) With hospitals closed down and medical supplies scarce, there will be an increase of other diseases.

In an ideal world, all survivors will be giant, Russian Bear Calvary type men and women, from ages 18-30, who are able to fight, and are willing to unite to defend themselves. In reality, you're going to get a **** load of hippies, businessmen, grandmothers, and idiots who will leeroy jenkins themselves to hell.
#164 - PenguinsOfMars (07/08/2012) [+] (4 replies)
The odds are 1 in 1000 that I will survive?
#229 - rnchampagne (07/08/2012) [+] (1 reply)
What if the immunity gene is also the ginger gene
#1 - blackcorsair (07/08/2012) [-]
Manbearpig's the real problem, not zombies, i'm cereal
#61 - rickmac (07/08/2012) [+] (2 replies)
why the hell would we want to restore the population back to 6,894,594,844
User avatar #6 - shinigamigod (07/08/2012) [+] (1 reply)
It is not a virus it makes more sense to be a parasite.
A virus would require you to be alive and warm to survive, a parasite however does not always require this.
A parasite will live inside you feasting on the food you ate in your stomach, then once you die it will dig its way to your brain and take control of you, and reviving your basic human needs such as eating so that it may continue to survive.
The transition of the parasite can either be airborne spores, or it lays eggs which it then plants into its victims through the saliva when it bites.
So, the surviving population will start off quite high and slowly drop at first and then topple out of control once they begin to swarm all over.
#496 - theninjakai (07/09/2012) [-]
Kill one zombie...a day?

**** THAT.

*BRRRRRRRRRRRRRRRRRRRRRRRRRTTTT*

We'll be done in 2 months.
#316 - Larousse (07/08/2012) [-]
Comment Picture
#196 - Tyranitar (07/08/2012) [-]
This, however, fails to calculate the amount of survivors who would die from zombie attacks, natural disasters, and other reasons, as well as those incapable of fighting off zombies, such as small children, or the sick or elderly.
This, however, fails to calculate the amount of survivors who would die from zombie attacks, natural disasters, and other reasons, as well as those incapable of fighting off zombies, such as small children, or the sick or elderly.
#202 - momothebear (07/08/2012) [+] (14 replies)
the fun of surviving a zombie apocalypse is to NOT be immune and manage. There's no fun in being immune. Beside, if there is 6,894,595 person left on earth and it's surface area is 148,940,000 km², that means there will be 1 person left per 21 km²... how do you suggest they reproduce?
the fun of surviving a zombie apocalypse is to NOT be immune and manage. There's no fun in being immune. Beside, if there is 6,894,595 person left on earth and it's surface area is 148,940,000 km², that means there will be 1 person left per 21 km²... how do you suggest they reproduce?
#18 - AnonymousDonor (07/08/2012) [-]
and this is why mathematicians arent as famous as physicists

assuming all your assumptions are true, you still don't take into account all the other factors like how many of those remaining people, though immune, are physically fit and active enough to survive living near/around zombies or are even able to kill a zombie per day

it also doesn't take into account the population distribution - its not like all the zombies and all the immune people are going to be living in adjacent cities; i'm sure if there were only a few zombies left in the entire planet it would take 7 million people a bit longer to hunt down every single one [which again assumes that each of them is physically able to do so] and even that too is assuming that there is no way these zombies could ever procreate (to quote Jurassic Park "life always finds a way")

now im sure ill get red thumbs because i misappropriated something which is fine because i honestly dont have the time or desire to care about preparing for a zombie apocalypse - i just wanted to point out some of the errors that arise with pure math alone
#605 - Womens Study Major (07/09/2012) [+] (2 replies)
Dubs decides who's immune!
User avatar #175 - zagnorathh (07/08/2012) [-]
nobody would have to kill any zombies because eventually they would just rot and nothing can move without muscles, not even the dead.
User avatar #413 - Ivandrago (07/09/2012) [+] (3 replies)
Reasons a zombie apocalypse would fail horribly:
1: Their main prey is their biggest predator. Not a good idea ever.

2: If zombieness is like AIDS in that it is acquired through bodily fluids, then that's a terrible medium for a virus. It's not that contagious that every cut ever will automatically make them a zombie. There is a shocking low chance of infection for any virus through bodily fluids.

3: What else would they eat aside from humans? They can barely access any preserved foods, and the meat in walmart only lasts so long.

4: They would be retarded. Simple traps would be able to kill vast amounts of them. Who's to say they wouldn't be like lemmings and mindlessly jump off cliffs?

5: Their flesh is decomposing. After so long, their muscles would be useless and they would be physically unable to move.
#487 - baniggernom (07/09/2012) [+] (6 replies)
Or we could all just go to Madagascar where we're safe forever.
#329 - drakonpunch (07/09/2012) [-]
Many of the survivors would be killed by the zombies, by age, by accident, by disputes between surviving humans, and some might be too young to be able to shoot zombies, or have other handicaps making them unable to kill zombies. TLDR; it would take longer than 3 years.
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