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An unmanned rice harvester works in a paddy field in Haituo county, Da’an city, in Jilin province. [Photo by Xu Chang/Xinhua]

An out-of school English-language class is held in Zhengzhou, Henan province. [Photo/VCG]

An oft-asserted critique is that China's SOEs have a lower return on capital than private companies do, implying that the SOEs use resources less efficiently. It's true that the return on assets in the private sector was 7.6 percent versus 3.3 percent for SOEs in 2019, according to the National Bureau of Statistics. But the claim that this implies that these lower capital returns reflect poor efficiency is simply an inaccurate interpretation of economic theory.

And here's the remarkable thing: Of the ancient seeds they tested, all were genetically related to the grapes we grow and drink today. Almost 60% were within one or two generations of modern varieties and, in at least one case, researchers discovered evidence suggesting consumers are drinking wine from the same grapes, or a direct relative, as a medieval Frenchman did 900 years ago. It's the rare "savagnin" blanc (not today's sauvignon) – a light, floral style grown in eastern France.

And it’s another indication that Amazon Go Grocery goes beyond Amazon Go.