Rather than discuss the merits and problems with Has anyone “possessed” ever spoken in language they did not know? I thought it would be better to take this off-line.
The current problems with the question:
- "Possession" is not well defined in scientific terms, i.e. it is not a phenomenon that can be tested.
- While an official document of the Catholic Church, the Rituale Romanum should not be considered as an authoritative source for scientific research. Consider the Church's teaching that Satan is “a spirit without body, without color and without odor.” If you interpret this from a physics standpoint, an entity without a body has no mass, and without mass it cannot store any information, and without the ability to store information there can be no intelligence, therefore a literal interpretation would conclude that Satan does not exist.
Some possible corrections:
- Provide a definition for "possession" in commonly accepted scientific terms. This may include observed changes in behavior after experiencing physical, mental or other emotional trauma, or some other event.
- Provide additional sources to give some scientific credence to the descriptions and methods described in the Rituale Romanum.