I like to think of less complex life forms like fish as being entirely interrupt-driven state machines. Cats are much more complex machines, capable of running

I like to think of less complex life forms like fish as being entirely interrupt-driven state machines. Cats are much more complex machines, capable of running long-term latent processes, and capable of abstract thinking. How else can I explain how my old cat found so much enjoyment in pushing things off tables? The only reasonable explanation is schadenfreude.