究其根本，书籍不是 Switch 卡带。任天堂可以靠马力欧和塞尔达这种强势的第一方独占游戏，逼着玩家买主机，但在中国，书籍内容的获取渠道实在太丰富了。当内容不再具有稀缺性，用户自然不愿意为了看书，就把自己锁死在 Kindle 这个封闭的围墙花园里。
В Иране заявили о поражении американского эсминца02:21
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Turbulence doesn’t have to be a matter of word-of-mouth. Commercial jets have the capacity to measure and transmit it automatically—using the software Cornman developed at NCAR in the early nineties—and have it relayed to other pilots. The software is freely available to airlines, but most of them balk at the cost of sending and processing the data, and sharing it with others. “It’s not much, but it adds up,” Sharman told me. “A lot of them are saying, ‘Wait a second, we’re barely making it. We can’t afford another hundred thousand on transmission!’ While the ones that are willing to pay for it say, ‘Why should I share my data with somebody else who doesn’t?” So far, only around two thousand planes have been equipped with the software—about one in four planes in the American fleet.
圖像來源，Mehr News/WANA via Reuters