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健脑三件日课
Three Daily Exercises
智能体是给你跑产线的，这三件是给你自己练的。一天二十分钟，题目从站内 168 张占位者卡里按日期取——同一天，所有人拿到同一道。
The agents run pipelines for you. These three train you. Twenty minutes a day, drawn from 168 real placeholder cards on this site.
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每日思想挑战
Daily Challenge
一天一道，五类轮换：划一条分离线／指认谁已经说过／判题型并定位／拆一句万能话／压成一句承重命题。写完才看得到参考读数。
One question a day, five rotating types. The reference reading unlocks only after you answer.
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30天健脑训练
30-Day Training
三程各十天：显露（学会看见）→ 发生（学会撞）→ 纠缠（学会被顶回）。三十天下来你手上会有一条经过占位检验的命题，不是三十个勾。
Three stages of ten days: Show, Generate, Entangle. You end with one proposition that has survived a placeholder check.
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思想成长树
Growth Tree
它没有自己的数据，画的就是上面两件的真实产出：三程的枝、写成的命题、交手过的学科圈层。没做的地方就是暗的，不补空枝。
It has no data of its own — it draws exactly what you produced in the other two. Unwalked branches stay dark.
这三件不做分数、不做排行榜、不做连胜奖励——任何能排成等级的数字，都会让所有人朝分高的那一套话靠拢，而这套系统唯一稀缺的就是话不一样。
No scores, no leaderboards, no streak rewards: any rankable number pulls everyone toward the same vocabulary, and difference is the one scarce thing here.