[AnimalMuppet]

The following words are bad: shared, mutable, global.

All programs have state. It's worse if the state is shared. It's worse if the state is mutable. It's worse if the state is global. It's the worst if it's all three.

Functional program still have state. They typically don't have shared state, or mutable state, or (much) global state, though. Those are real wins.