You know these sheeple. In fact, you might even be one of them. If so, you better hope that you know someone who thinks one step ahead of the game and are in their good graces.
Now assume that there is a crash of the paper currency. There will not only be no way for these people to buy food but no way to finance getting their prescription filled.
This scenario covers 160+ million (self-entitled) Americans, and probably a large % of most modern nations.
So if you doubt that Zombies CAN (and will eventually) be real (if you have food or drugs that they need and you won’t give it to them), you ain’t playin’ with a full deck of cards, especially with a long enough timeline as well as history as your guide.