[Gently, or as close to it as Light can get without sacrificing his pride:] If we're all Kira, then you are as well.

[In truth, his double's reasoning echoes many of his own thoughts. (Of course it does, they're essentially the same person -- but that smells of circular logic.) Simultaneously Kira and not Kira -- Light wonders what the single decaying atom equates to in this metaphor, and whether he or the other is the one that survived.]

[[[ooc: DOUBLE EDITS FTW... er, sorry, evidently my proofreading is fail tonight forever and ever.]]]