Despite a whole season of time travel via tree, we've learned little about the nature of Bran Stark's powers as the new three-eyed raven on Game of Thrones.

But Isaac Hempstead Wright, the actor who plays Bran, gave us what may amount to the first official explanation: the Three-Eyed Raven, quite simply, knows everything.

"He's one of the few fragments that remain of the old Westeros" that is magical, Wright said at the show's standing-room-only Comic-Con panel in San Diego, moderated by Hodor himself, Kristian Nairn. "His purpose hasn't been revealed yet."

But asked that old Comic-Con panel standby question -- what superpower would you have? -- Wright offered more details.

"I've always said that I could have any superpower it would be to be all-knowing, which is amazing because that's pretty much what Bran is right now," he said.

If Bran is indeed all-knowing now, that would put to rest the theory that he has accidentally doomed Westeros by crossing through the Wall. But we'll find out more as Season 7 progresses.