As a clear lead hardens and the appointment of a new prime minister looms, both contenders are making noises about cutting taxes. But would either have a firm grip on the country’s long-term woes? The vast makeover of Ethiopia’s capital city—despite a grinding civil war—is an idealised vision of the country’s future. And figuring out why thinking hard is so exhausting. For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer