用户不是不想尝试更好的产品，而是被积累在原有平台上的个人上下文所束缚。
Why Trump means the Cuban Revolution faces its biggest threat yet
，更多细节参见新收录的资料
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Stiglitz has seen what happens when societies lack those tools.
Other researchers say the very ubiquity of chatbots is what makes it appealing: their ability to provide immediate validation may undermine why users turn to them for help in the first place.