Thread:BoshiKuro/@comment-26232562-20150626101206/@comment-26226753-20150626103031

Hmm, I'm not really sure but I think it's because Sasaki have live his own life, with his own world and peoples he cared about. Sasaki live in human society, and the things he knew about Kaneki was that he was a ghoul, the humans ennemi and a rated ghoul, that having his own friends and world.

For example, if he has amnesia,  but was still with touka and the others at anteiku, he would have considered kaneki as himself.

But since the life of Sasaki is so different than kaneki, he could imagine it at different life and world. Sasaki also didn't want to know about kaneki, so he exclude kaneki of his life and treat him as someone else, someone different, to not admit he was him, because it will change his life.

So he know that kaneki is him, but prefer considered that it's an other different life. I think that.