Alexei Navalny, Russia’s most prominent opposition figure, has been transferred to a brutal prison. Other Kremlin opponents have been imprisoned or exiled, as Russia has grown more repressive since invading Ukraine. The world’s population will hit 8bn this year; we discuss which regions are growing and which are not. And why clear wine bottles are a bad idea.For full access to print, digital and audio editions of The Economist, subscribe here www.economist.com/intelligenceoffer
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