再比如上厕所、玩什么东西或要什么东西，都会根据她的反馈结果，引导她，让她有勇气说出自己的诉求。
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Michael Dell did it. The founders of Proof did it. Even our incubator prototypes products with Kickstarter campaigns. If customers pay before launch, demand is validated and you’re building what people want now.
Lex: FT’s flagship investment column