Board Thread:Naruto Discussions/@comment-1018594-20160409062530/@comment-732150-20160829200522

Thekillman wrote: NeedleJizo wrote: The Curse of Hatred effectively acts as a brainwashing tool. It doesn't matter who you were before, as soon as that hits you your default personality becomes "I hate the world and I wanna kill all the things". It's a plot device at its finest. Basically the sharingan's powerful memory means that the normal process of recovering from trauma is very hard. Uchiha simply remain traumatized for far longer and can carry grudges for much longer. Obito was for a good part a traumatized kid, who as an adult was basically suicidal. I've seen someone argue something about this once, can't remember where though. Sharingan perfectly retaining what it sees is the reason why Itachi started having his on all the time. Most Uchiha would naturally use Sharingan only in battle, so stuff like the death of friends and allies would also be retained much more in their memories. Itachi started having his Sharingan on all the time to record as much as he could, so the memories of all the terrible things he saw didn't become the things he remembered the most.