A closer look
Bartering human organs legally requires the exact same matchmaking logic as a complex dating app. Buying and selling kidneys is universally illegal, creating a massive market design problem for transplants. Nobel laureate Alvin Roth solved this by designing a clearinghouse algorithm for kidney exchanges. If a willing donor is incompatible with their loved one, the algorithm searches a vast database to orchestrate elaborate chains of trades between multiple incompatible pairs. No money changes hands; it is a perfectly designed barter economy that saves lives through pure computational logic.
