A lot of people believe that the reason ultimecia to achieve time compression was to denying her fate death in Squall`s hand.But i think that is not the truth at all.I think the motivation of Ultimecia is quite clear to become the ruler of everything.In the time we meet Ultimecia before final battle she say blah blah blah... The price for your meddling is
death beyond death. I shall send you to a dimension beyond your imagining. There, I will REIGN, and you will be my SLAVES for eternity.You see, she mean she want all the creature,all the living and death,all existance to become her slave.SHE IS THE ONE.Alright if Ultimecia realy want to deny her fate why she just don`t` kill Squall at the end of disk 1,please don`t tell me that she want he live to tell her the meaning of SeeD because that ridiculous.But she let Squall live because she doesn`t know anything about her fate.Ultimecia(Edea) at Galbadia Garden say so you`re the legendary SeeD that destined to face me(Edea) is not intended say that you`re the one who will kill me later.The reason Ultimecia say that is quite simple.Ultimecia lives in the future so she already learn many history about sorceresses,sorceress war,etc.And she learn in history sorceress Edea defeated by Squall the leader of SeeD and of course in the future Squall will became the legend.So when she say that she already know that she (Edea)will defeated by Squall at that time.That the reasonn why she say that.I hope you understand what i`m talking about.Fell free to share your thought.