Pakistan, Oct. 13 -- The geography of power and progress has been dictated not merely by natural resources or brute force, but also by the migration of the human mind. Long before economists coined the modern term "brain drain" in the mid-twentieth century, the structural flight, forced extraction, and voluntary relocation of a society's intellectual, artistic, and technical elite served as a fulcrum for the lever of civilisations. To trace the history of human capital mobility is to trace the very heartbeat of global history, which is a continuous saga of talent flowing away from stagnation, drifting towards security, patronage, and opportunity.

Long before modern voluntary migration, the historical flight of human capital was largely d...