5. The Crowds
There are 7 billion living humans on this planet. Not all of them are going to be infected with zombie-itus. If only half the Earths population were wiped out today, wed still have the same amount of people as in the year - youre not gunna believe this - 1970. Crazy, right? So, lets just imagine the sheer amount of people evacuated from their homes, fleeing from zombies, just flapping and freaking out in the streets getting in your way. What were used to seeing in zombie media is desolate, apocalyptic worlds. Take Will Smith in I Am Legend - The last man on Earth is not alone - yeah, but is he faced with herds of screaming families as he wanders around New York City? No. Hes pretty much got the place to himself (minus the zombies) which is half the fun. Its bad enough heaving yourself into a human sardine tin on the Monday morning train commute. You see our species and the innate selfish gene in full glory on those 8am journeys: bags in your back, elbows out to get the first seats - the thought alone is enough to induce clammy-handed flash-backs. Now if theres an outbreak of zombies, and crowds are squabbling to evacuate an area, that horrific social enclosure is going to be a million times worse. And youre probably not going to get that window seat.