In terms of movement, there are two types of zombies: ones that move slow and those that move fast. For the longest time, I wondered which type would be more scientifically plausible if zombies existed. Because zombies are dead, they cannot produce fatigue toxins that would tire them, which gives them limitless stamina. If zombies moved fast, they could literally run forever and tire their prey out, which adds to the suspense to the story. On the other hand, the slow zombies seem more likely because since they are dead, their bodies are rotting as they move and rigor mortis would make their joints and muscles extremely stiff, which would hinder their movements. What do you think? What is more frightening? A fast zombie or a slow zombie? I will be tinkering with this question as I brainstorm my zombie apocalypse story.