Board Thread:Theories and Speculation/@comment-35172651-20180401134411/@comment-3568954-20180413090026

BigVibber wrote: He wasn't phasing. He was teleporting himself and/or body parts to another dimension. Why wouldn't that kind of huge change not be detected by dojutsu users. Teleportation one's body into another dimension while still being visible in the normal dimension is by definition Phasing. the ability to phase is the ability to go intangible by various means. obito does so by teleporting his body parts into another dimension.

and the reason there is nothing noticeable is because it happens to fast