[It requires his mind to grasp at ideas previously unknowable. His knowledge of the world, of any outside universe, is limited to the boundaries of what he's experienced himself—he knows the history of his own nameless planet only because he had to, learned in facing Kaguya and the Ōtsutsuki Clan, learned in the knowledge of himself as a reincarnation of that first born son. So it is like wrapping his mind around a strange shape, hearing Cyram describe the beginning of all sentient life.

There's no disbelief in him, though, because it makes an awful sort of sense. War as this fundamental aspect, rewoven through structures of civilization again and again—he has seen it play out with his own eyes. Men who would go further. Danzou, ceaselessly hungry for power, who would take war in his hands and turn it against his enemies. Madara, and by extension Obito, who in seeking to end the crisis of war upon the shinobi world invited only more of it beneath the illusion of peace.]

I've heard of Earth. [The only other name of a world he's come to know since being here.] ... The world I'm from doesn't have the same creation in that sense. I don't think there is a name that we've given to the idea. We don't worship it; we practice it. [In a way, it's similar enough.] My kind have been in conflict with one another since our genesis—compared to how long you've existed, it's nothing. A thousand years. Yet before that, what sentient life dwelled in that place was still fighting. They just used less effective weapons.

[He cannot imagine an existence without it, let alone his own.

Sasuke sips more quietly on his miso bowl by comparison.]

Has no one asked before? I'm surprised. [A glance from the corners of his eyes.] You're interesting to me.