What would have happend If the Third had opened the Gates?

[Gods_Son]

Even if it is said that he knows all jutsus, doesn't mean he can perform them. The opening of gates isn't really jutsu anyways it's more like intense training of taijutsu which later gives you the gift. He is also old, and all his bones would've probably cracked. Either way, we're never going to see him use gates, so like animemaster said, you can go ask kishimoto for your answer.

[PSJ]

from what kakashi said when he saw that lee opened gates was that it was a gift he already had and he got it through hard training. its not a jutsu which means 3rd probably couldnt do it. i mean what is this in so many discussions the gates turns up. all strong ninjas cant do it, its just a selected few that can. kishimoto made this way to common when kakashi opened one gate when he was rock climbing(they showed his brain and the brain is where the 2 first gates are and he got a real power up right after.)