The MCU is built on a sturdy foundation of supergeniuses. The first two films in the franchise, Iron Man and The Incredible Hulk, gave us Tony Stark and Bruce Banner, two men of science who are responsible for much of the technology and innovation that makes the superheroics of Marvel possible. Heck, Tony's dad Howard is another great Marvel genius, and one of the men responsible for the creation of Captain America. In the wake of Black Panther, though, there's a new smartest kid on the block (and we mean "kid" in the most literal sense).
Shuri, T'Challa's 16-year-old sister, has now been established as the smartest person in the MCU. That means the innovation and expertise that Banner and Stark bring to the fight against Thanos is going to be nothing compared to what Princess Shuri has to offer (and she won't be afraid to challenge either of those guys if she thinks their calculations are off). If this teenage girl who theoretically hasn't even reached her intellectual prime is already smarter than both of them — and has used that intelligence to create countless breathtaking innovations in Wakanda — Thanos will have his work cut out for him when it comes to taking over Earth. That said, we're also crossing our fingers for her to cross paths with Peter Parker, the MCU's other resident kid genius.