If you’ve ever wondered exactly what the zombie apocalypse would look like—and how long it would take to claim your city—this interactive map created by Cornell researcher Matt Bierbaum can help you envision all your darkest fears.
Just click anywhere on the map to create your very own Patient Zero, and watch the zombie plague spread across America like an undead wine stain. The simulation is based on data from the 2010 U.S. census, and allows you to tweak variables relating to zombie deadliness and speed.
Note that this will be a personalized experience for U.S. readers only, so everyone else will have to be content with watching America be slowly consumed by the walking dead.