Beneath Tanzania's vast and largely unmapped terrain lies a question that nations and investors alike are racing to answer: what wealth waits underground? This week, Tanzania formalized partnerships with China, Finland, and South Korea to extend high-resolution airborne geophysical surveys across half its territory by 2030, a fourfold expansion from where the country stands today. The initiative reflects a broader truth about resource-rich developing nations — that knowledge of what one possesses is itself a form of power, and that attracting capital begins with reducing uncertainty. Whether t