The Focus Score

The laptop camera was supposed to be invisible once you got used to it, according to the assembly where the school had introduced FocusScore back in September. It tracked eye movement and posture during class, converted both into a number between zero and a hundred, and sent a weekly summary to parents. Emeka had stopped thinking about the little green light above his screen within a week. What he hadn't stopped noticing was that his score kept dropping on exactly the days he felt he had understood the most.

据九月份学校介绍“专注分”时的那场集会说，笔记本电脑的摄像头用习惯了之后，应该就像不存在一样。它在上课时追踪眼球运动和坐姿，把两者换算成一个零到一百之间的数字，每周给家长发一份汇总。埃梅卡一个星期内就不再去想屏幕上方那个小小的绿灯了。他没能停止留意的是，他的分数总是在他觉得自己理解得最多的那几天往下掉。

"Forty-one," he said, showing Sana his phone at lunch. "Tuesday. That was the lecture on radiative cooling. I filled four pages."

“四十一，”他在午饭时把手机给萨娜看，“星期二。那天讲的是辐射冷却。我记了四页。”

Sana, who sat one row behind him, didn't need to ask why. "You take notes on paper. The camera reads that as you looking down and away. It doesn't know you're writing — it just knows you're not looking at the slide."

坐在他后面一排的萨娜，不用问为什么。“你用纸记笔记。摄像头会把那当成你低头、看向别处。它不知道你在写字——它只知道你没在看幻灯片。”

"So the day I actually paid the least attention —"

“所以我真正最不专心的那天——”

"Was the day you probably scored highest, yeah. Because you were staring at the screen the whole time." She said this without much guilt, which was, Emeka thought, either admirable or slightly alarming.

“就是你很可能得分最高的那天，对。因为你整个过程都盯着屏幕。”她说这话时没什么愧疚，埃梅卡觉得，这要么令人佩服，要么有点吓人。

Had the software been built to tell handwriting from distraction, none of this would have been necessary. Since it hadn't, fixing the surface problem would have been easy enough: type his notes instead, keep his eyes on the slide, let the number climb back to wherever it was supposed to sit. What stopped him was less the principle of the thing than a very specific dread. A counselor had already emailed his mother twice about his "engagement pattern," and a third email, he suspected, would trigger an actual meeting. There he would have to explain, in front of two adults, a note-taking habit that had nothing wrong with it at all.

如果这个软件能分清手写和走神，这一切就都没有必要了。既然不能，解决表面问题其实很容易：改用打字记笔记，眼睛盯着幻灯片，让数字回升到它本该在的位置。拦住他的，与其说是原则，不如说是一种非常具体的忧虑。一位辅导员已经给他母亲发过两封邮件，说他的“参与模式”，他猜第三封邮件就会引来一场真正的面谈。到时他就得当着两位大人的面，去解释一个根本没有任何问题的记笔记习惯。

So instead of typing, he and Sana built a case. She photographed all four pages of Tuesday's notes, time-stamped against the lecture recording, and lined up three other low-scoring days the same way. Each one, it turned out, was a day he'd written by hand rather than typed. Not until they laid the pages next to the transcript, sentence for sentence, did the pattern become impossible to argue with. Every "distraction" the software had logged corresponded to a moment he was, in fact, writing down exactly what the teacher had just said.

所以他们没有改打字，而是和萨娜一起搭了一个论据。她把星期二的四页笔记全都拍了照，与讲课录音的时间对应起来，又用同样的办法排出另外三个低分的日子。结果发现，每一天都是他手写而不是打字的日子。直到他们把这些笔记页和文字稿一句一句并排放在一起，这个规律才变得无可争辩。软件记录的每一次“分心”，对应的其实都是他正在写下老师刚刚说过的话的那一刻。

Their teacher, to her credit, didn't need much convincing once she saw it laid out. She forwarded the evidence to the counselor's office herself, along with a note suggesting the system's threshold get reviewed for anyone who took notes by hand. Emeka's score for that week came back unchanged, since the algorithm itself couldn't be edited retroactively, but the follow-up email his mother received afterward said something different this time: a correction, not a concern. He kept writing on paper. He just stopped assuming the camera would ever learn to tell the difference.

他们的老师值得称赞，看到这些摆出来之后，不太需要费力说服。她亲自把证据转给了辅导员办公室，还附了一张字条，建议对手写记笔记的人重新审查系统的阈值。埃梅卡那一周的分数没有变，因为算法本身不能追溯修改，但他母亲随后收到的跟进邮件，这次说的是另一回事：是更正，不是担忧。他继续在纸上写。只是不再指望摄像头什么时候能学会分辨这两者了。