我意识到糟糕的照明正在悄悄影响生产力（而且没有人对此进行测量）。
我们花了很多时间来优化工具：键盘、显示器、集成开发环境（IDE）、延迟、人体工学。但最近我注意到一个奇怪的现象——照明几乎从未受到同等程度的关注，尽管它直接影响专注力、疲劳和决策。
我在长时间工作时进行了一项小型个人实验：
- 关闭了主要的顶灯
- 使用了更少、强度更低的间接光源
- 故意让一些区域保持黑暗
结果不仅仅是“更舒适”——我的工作行为发生了变化：
- 深夜时眼睛疲劳减少
- 更长的专注时间段
- 冲动的上下文切换减少
让我感到惊讶的是，大多数生产力建议都假设“更多的可见性=更好”，而人类的感知似乎正好相反：对比、阴影和克制能提高清晰度。
这让我思考：
- 为什么我们不把照明视为与排版或用户界面层次结构一样重要？
- 除了原始的照度（lux），几乎没有工具可以测量工作环境中的照明质量吗？
- 照明是否是一个初创公司忽视的隐形变量，影响生产力？
我很好奇这里的其他人是否注意到了类似的效果，或者这只是我自己上当的安慰剂效应。
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We spend a lot of time optimizing tools: keyboards, monitors, IDEs, latency, ergonomics.<p>But recently I noticed something odd — lighting almost never gets the same level of attention, even though it directly affects focus, fatigue, and decision-making.<p>I ran a small personal experiment while working long hours:<p>Removed the main overhead light<p>Used fewer, lower-intensity, indirect light sources<p>Let some areas stay intentionally dark<p>The result wasn’t just “more comfortable” — my working behavior changed:<p>Less eye fatigue late at night<p>Longer uninterrupted focus blocks<p>Fewer impulsive context switches<p>What surprised me is that most productivity advice assumes “more visibility = better”, while human perception seems to work the opposite way: contrast, shadow, and restraint improve clarity.<p>It made me wonder:<p>Why don’t we treat lighting like we treat typography or UI hierarchy?<p>Why are there almost no tools that measure lighting quality for work, beyond raw lux?<p>Is lighting an invisible variable in productivity that startups are ignoring?<p>Curious if others here have noticed similar effects — or if this is just a placebo I’m falling for.