Before epilepsy was understood to be a neurological condition, people believed it was caused by the moon, or by phlegm in the brain. They condemned seizures as evidence of witchcraft or demonic possession, and killed or castrated sufferers to prevent them from passing tainted blood to a new generation.
Man, free will is such a fascinating topic, right? While some scientists lean towards determinism, there are still debates and studies on consciousness that keep things interesting. Even if we're all just along for the ride, let's make the most of it and keep laughing our way through the adventure!