THE DISCOVERIES OF TODAY THAT WILL DEFINE THE WORLD OF TOMORROW
ALL OF US ARE DESCENDED from migrants. Our species, Homo sapiens, did not evolve in Lahore, where I am writing these words. Nor did we evolve in Shanghai or Topeka or Buenos Aires or Cairo or Oslo, where you, perhaps, are reading them.
Even if you live today in the Rift Valley, in Africa, mother continent to us all, on the site of the earliest discovered remains of our species, your ancestors too moved—they left, changed, and intermingled before returning to the place you live now, just as I left Lahore, lived for decades in North America and Europe, and returned to reside in the house where my grandparents and parents once did, the house where I spent much…
