Board Thread:Manga/@comment-27321453-20190908104148/@comment-37493549-20190916092740

Well if Eren's already seen the future, you could say that everyone in the world is locked into their actions that lead to that future. They just don't KNOW that their 'choices' are predetermined.

It's not like Grisha was forced to kill the Reiss family by the time loop, he chose to do it because it was his plan when he went there, and Eren reaffirmed the reasons he already had to do it.

You can argue which 'came first', the 'choice' or the 'future', but I'm saying the nature of this question is no different for the Attack Titan than to anyone else.