I do not know how theories start, in the end they only lead to destruction of the exact story line. One of the more basic theories is if Rinoa and Ultimecia are one and how come? I'm not here to explain my theory, which you can find in Ultimecia section, but I do want set some things right that has be notified and stated in the game itself. Please click on one of the understated question to find a open answer.

Do Sorceresses age?

What is Time Compression?

What is being sacrificed?

Griever and a summon ring?

What does Square-Enix think?

More questions and answers to come.