4. Arbitrary Enforcement and Account Termination Risks
“You can’t collect biometrics on a kid,” he told Fortune. “And so how do you verify someone is 13 without verifying, without collecting a thing, that they’re 13.”
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代码里画了一个爱心形状的 2D 路径，然后给它一个厚度，它就变成了一个 3D 的爱心。
append has to allocate one. Because it doesn’t know how big the