Controversal opinion:

Final Fantasy XIII-2 paradoxes do not make sense. It is not logical that fixing something that has already happened, makes everything alright. That is how causality works. You would destroy your reason to change something and also not have changed anything but it did exist. Just like the other thing also existed before. Which is why paradoxes do not actually exist.

Good thing that twitch users are so intelligent that they do not get that.