Shuri’s the only one who can repair Vision and she teased Banner for not having built Vision this way instead of that way.
It’s a cute moment and helps demonstrate how smart Shuri is when compared to the rest of the world.
Shuri is one of the smartest people, if not THE smartest person, on the planet and I desperately wanted this teenage girl to undermine Banner or Tony Stark like they were a couple of dummies.