Board Thread:Versus Debates/@comment-1872728-20170826044217/@comment-27924662-20171007135720

Thekillman wrote: UltimaDude wrote: Dude, I feel like you are making excuses here. I'm just trying to explain why. It's not the first time people got caught offguard like that. Besides, we've seen that sensing takes effort and can be countered (e.g. karin during 5 kage summit), as we have seen that e.g. Madara was surprised by Naruto kicking his Gudodama despite having a Sage Mode and sensing. Meaning that if Kaguya wasn't expecting the strike, she wouldn't have been doing the sensing to detect it. The fact that Naruto was using clones and transformations to confuse her, and that it was working, suggests she was already failing to keep up. Sneaking someone into the attack that she previously considered unworthy of her attention makes sense.

My point is, i guess, that the concept of sensing isn't really consistent, sometimes it's active and sometimes it's passive, and it can be weird. What about her Perfect Byakugan?