In fact, we know for sure that it exists in cultures with no access to media or technology in the recent past, and severe episodes of bipolar (mania) have been

In fact, we know for sure that it exists in cultures with no access to media or technology in the recent past, and severe episodes of bipolar (mania) have been explained as the victim being possessed. One case: https://ajp.psychiatryonline.org/doi/10.1176/appi.ajp.2015.15030281 https://ajp.psychiatryonline.org/doi/10.1176/appi.ajp.2015.1...