Quote Originally Posted by yuna_elena
Oh. Just so you know, there's no time travel in FFX.
Even if they got a Dilorean? You know that "Back to the Future" car I don't know how to spell.

I just figured that the fayth dreamed Jecht either by accident or design gave his potential to save the world and conjured him to reality. Then when he failed the fayth had a replacement waiting that they knew Jecht would approve of....Tidus.