Walk down a city street today and you’ll see it: food from three continents on the same block, conversations in half a dozen languages, and fashion trends borrowed from everywhere at once. We live in a global moment where borders seem blurrier than ever. Yet, oddly enough, people are becoming more interested in their roots. DNA kits sell out. Online ancestry forums boom. Folk festivals and traditional crafts, once fading, are making surprising comebacks. It feels like a paradox: the ...