It is very much the Black Panther tale dreamed up by Stan Lee and Jack Kirby in the 1960s, a retelling of the origin story in which Wakanda becomes the sole possessor of vibranium,
an indestructible alien element from a fallen meteorite, and over time becomes the most technologically advanced society in the world, in part by cutting itself off from said world, hiding under the cloak of unassuming third - world poverty.