That principle asserts that innovations only truly catch on when two factors connect: One, the new thing works reliably, and two, people understand why they need it. Simply creating a cool new technology is never enough; fail to bring the public along, and you wind up with either weak demand (think Segway) or a backlash (like with nuclear power in the 1980s).
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Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04。关于这个话题，体育直播提供了深入分析
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