Talk:Ken Kaneki/@comment-181.39.117.188-20160514153041/@comment-26653902-20160514161756

^^It's still never occurred in an instant in canon. All instances of hair actually turning white happened over a long stretch of time. The shortest stretch was over 10 days for Kaneki the first time. And Koori only turned partly grey after 6 months.

TG always operated within realistic boundaries, so I doubt that's changing.