You're talking about time travel. That's science-fiction. Low-grade science fiction at that.

[ Did he not realize that? Was he that far gone with guilt, that even this seemed a possibility? ]

I know you think this is your fault, but this...this isn't an answer. It's a fairy tale. It's nonsense.

[ And he wasn't buying into it. He didn't need his hopes raised only to have them shattered when reality ultimately denied them the chance to bring their friends back. He couldn't. ]