Quote Originally Posted by Krbadass
Tobi can't be Obito, Obito was a little kid around the time that madara attacked the village with kyuubi. Think about the ages and timelines and know that you can't be right.
Obito was at the same age as Kakashi. The theory that Tobi = Obito means that Madara took over Obitos body. If it's really the case then Tobi and Kakashi are both at the same age now. But only their bodies.

Which means: Madara is 150 years old (right?) but has a 30 years old body.