Robust ballistic computation by tropical soldier crabs: http://wpmedia.wolfram.com/uploads/sites/13/2018/02/20-2-2.pdf

First it was electricity and sand. Then it was aqueducts and waterwheels (or maybe this came first). Now it's crabs and "intimidation plates". Soon, it'll be departed spirits and warding sigils, or quantum foam and pencil shavings. Computation is eating all worlds. It must be stopped.

!!!

^ Dibs on using that as my XKCD-style password.