Board Thread:Naruto Discussions/@comment-11276487-20140831160926/@comment-11276487-20140911003719

Matteo.raso.39 wrote: I think Kaguya is mentally challenged, with brain damage akin to a lobotomy patient. The entire time she was shown her thought process didn't evolve beyond "get chakra". The only reason she was able to do anything strategic was due to black zetsu, who was unknowingly pulling her strings all along. She is like Ten Tails: more akin to a force of nature than a sentient being. Basically, she ate a forbidden fruit to save her people, sacrificed her mental well-being, and was trapped in an enteral prison as punishment.

It's actually sad really, but what Hagoromo said in Ch.692.

I quote from this writing(Might be incorrect, so Im taking the risk)

I don't know what is it that caused her to change into something that would be called a demon.

He's said himself dude, that he doesn't know what she is like this!

The Sage of six paths himself doesn't even know why his mother became what she is!

Something just isn't right here.