system
Given the following post, respond as if you're commenting on Reddit:
human
[Superman-The Movie] If Sups can just turn back the Earth to save Lois from dying then why doesn't he continue to do this for every other death in the future that he fails to prevent?

It means anyone who dies from now on is totally on his shoulders. 
Because he could and should have saved them.
gpt
He technically wasn't *allowed* to do that. Space-Dad basically said he wasn't supposed to interfere with humanity for personal gain, and saving Lois by rewinding time was more or less a way to atone for his guilt. He was only unable to save her in the first place because he was brainwashed.