Board Thread:Naruto Discussions/@comment-25100062-20140716145823/@comment-2039297-20140718234508

Littleone94 wrote: Well you will hopefully be disappointed. If Kakashi gets BOTH of Obito's sharingan, he'll drop dead in no time. If not, he'd had live the rest of his life with his eyes closed outside of battle. Don't be an idiot.

Okay, no. Kakashi kept his left eye closed to preserve chakra, yes. That doesn't mean he has to do it. This isn't part 1 where using his Sharingan for like 10 minutes puts him out of commission for a week (as it did after his first encounter with Zabuza). Heck, even at the beginning of Part 2, he kept his Sharingan active for an entire day against Naruto and Sakura. During the war, the darn thing has been open for several days straight (about 3-4, up until Madara took it). Furthermore, he would only have to close one eye again if he really needed to preserve chakra in a manner as he usually does (remember, it's actively using the Sharingan's myriad of abilities that puts the most strain on its wielder). I return the comment: Don't be an idiot.