Board Thread:Theories and Speculation/@comment-31099706-20170327120301/@comment-26773508-20170412145737

Yeah, this particular Tsukuyomi is indeed supremely odd. Before the Itachi novels, I believe most of us assumed that the primary method of damage of Tsukuyomi was brain trauma. But then again, didn't Itachi's babe die through a supremely happy dream? It seems Tsukuyomi's damage is not caused by brain trauma per se, but by tricking the brain into believing that some extreme damage has taken place, physical or psychological or both. In that Uchiha girl's case, it seems her brain was tricked into believing that her natural lifespan had come to an end, which then resulted in her brain actually shutting her body down.

Keeping this in mind, it is indeed very difficult to ascertain what the endgame within the Tsukuyomi used on Sasuke actually was. Either there was no endgame beyond plucking Sasuke's eyes, or maybe Itachi had other torture in mind. The former scenario makes that particular use of Tsukuyomi an illogical and senseless waste of chakra on Itachi's part. The latter scenario could consist of Itachi plucking out both of Sasuke's eyes, and then using other forms of torture.

One of the more ridiculous and unlikely forms of torture might, perhaps, be keeping Sasuke alive while Itachi unlocked the EMS and then wreaked havoc on the world. Sasuke would then witness Itachi's atrocities for the next few days or months or even his whole life. The illusion of listening to Naruto, Sakura, Suigetsu, Juugo and Karin screaming while they're being brutally killed by Itachi in front of Sasuke himself; and the ensuing realization of that he completely failed to avenge his clan and his teammates while Itachi ravages the lands with the EMS, would indeed prove to be an extremely horrendous form of torture. Remember that Sasuke wasn't a cold, heartless cunt by the time of his fight with Itachi.

However, this scenario also seems quite ridiculous. But it could also serve to strengthen Sasuke's hatred and, eventually, his overall strength. But even this is very very far-fetched and frankly, I find this scenario ridiculous as well.

But what I can agree with you is that this particular Tsukuyomi is supremely odd, and I have a feeling that we're overanalyzing things. I think the most likely answer is that Tsukuyomi wasn't all that watered down; and it's rather one of those times Kishi didn't put too much thought into plot and consistency, which frankly has happened a lot in the manga.