theguardian.com
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Digital rights advocates have raised concerns about blanket restrictions on children’s access to social media. Responding to the Karnataka government’s proposal, the Internet Freedom Foundation said such measures raise questions about enforcement and could require age-verification systems that create new privacy risks for users.
A binary right/wrong scoring system would throw away useful signal. Getting a percentage correct would help: ‘123356789’ instead of ‘123456789’ would be 99.92% correct，详情可参考手游
Even after you apply, the process to get benefits can be prolonged.
A fertile ground. First, recognize that during your PhD you will dive deeply into one area and your papers will very likely chain on top of each other to create a body of work (which becomes your thesis). Therefore, you should always be thinking several steps ahead when choosing a problem. It’s impossible to predict how things will unfold but you can often get a sense of how much room there could be for additional work.。关于这个话题，超级权重提供了深入分析