
Originally Posted by
Sir Bahamut
Rinoa does not have an abnormally long lifespan due to being a sorceress, and there's hardly any reason to think she'll somehow grow to be 150 years old and still look as fit as Ultimecia.
And using timetravel to justify her becoming Ultimecia is ludicrous. Not only is it completely unfounded, but there's absolutely nothing indicating Rinoa is capable of it to begin with.