Originally Posted by Wolverine
Obito is able to transport people from this dimension to the Kamui dimension. Then wouldn't Minato be able to come back to this dimension using his reverse summoning, since the concept behind reverse summoning is traveling across two differing dimensions?
No, if what Kakashi said is true then Minato's reverse summoning only goes through one other dimension, one other used by Kamui. Essentially it means he moves through the dimension he would currently be in and the dimension his summoning uses.