After more than two decades shaping the frontier of biomedical imaging at Caltech, Singaporean scientist Changhuei Yang has returned to his homeland to join the National University of Singapore, drawn back by a national program that recognizes the value of its diaspora. His new laboratory will pursue a quietly radical idea: that microscopes need not speak to human eyes at all, but rather to the pattern-recognition depths of artificial intelligence. In an age when a machine has already outpaced expert pathologists in predicting how cancer spreads, Yang's homecoming carries implications that ext