![Why Computers Can't Count Sometimes](https://hight3ch.com/wp-content/uploads/2018/11/why-computers-cant-count-sometim-800x440.jpg)
Sometimes, numbers on sites like YouTube and Twitter jump up and down; subscriber counts lag, like-counts bounce all over the place. Why is it so hard for computers to count? To answer that, we need to talk about threading, eventual consistency, and caching.