The skills that made you hireable today will be half-obsolete by 2027. Two small nations are leading the fight against this new form of economic entropy.THIRTY MONTHS. That is how long it takes for half of a software developer's hard-won expertise to become as helpful as a Nokia flip phone. This alarming statistic, courtesy of Harvard Business Review research, has transformed the talent strategies of ambitious scale-ups from Singapore's gleaming towers to Amsterdam's converted warehouses.Conside...