Thread:DazzlingEmerald/@comment-25152698-20141211170148/@comment-6003865-20141211185652

She steps through the portal, it doesn't pull her in from what we have seen, that's measuring Kaguya's speed vs the portal. Still, the sharingan could not keep up with A, sasuke only being able to match him because of his straight line moves being EASY to predict, which means he was faster than the portal. Because obito could apparently interact with an instant ability by that logic. The only reasonable explanation is that while the transportation is instantaneous, the portal opening and closing may not be as instantaneous, particularly the closing.

As for the tracking, though they were incredibly fast, they were basically battering rams. They only ever moved in giant telegraphed lines.

As for the blindness, both Madara and Obito had Hashi cells again, It still could have made a big difference there. The easiest explanations are either Hashi Cells, or it's not the eyes themselves that are degenerating but rather the connections to the brain. In that case something about the new eye must produce a type of chakra that reinforces those connections so they don't burn out. Probably some combination of the two.