America’s final presidential debate had less noise and more substance. But polls seem immovable and nearly 50m Americans have already voted; will the race change? South Korea’s population-boosting efforts have failed, so it is encouraging more women into the workforce—and that will redress some long-standing inequalities. And crunching 70 years’ worth of Formula 1 data to find the sport’s true greatest. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer