A Cat Entertainer

你家墙上一闪一闪的光猫就是一只低速光模块。

通信界也有自己的摩尔定律，AI 的带宽需求比它还快。

Kevin 把一百多年通信史压成三次跃迁，铜到光的胜负是物理性质写定的，之后五十年光的边界一直往芯片端推，推到今天的机柜边上。

可插拔、LPO、NPO、CPO、OIO，五种封装方案其实是同一道选址题，快递站建在离写字楼多近。

从赵梓森用酒精喷灯拉出第一根光纤，到光模块全球前十占七席，中国是先做光纤光缆、再做设备、再做模块，如今在攻最上游的光电芯片。

The blinking box on your wall is a slow optical module.

Networking has its own Moore's law, and AI's appetite for bandwidth outruns it.

Kevin compresses nearly two centuries of wired communication into three shifts.

Pluggable, LPO, NPO, CPO, OIO — five packaging schemes that are really one siting problem, how close to the office tower to build the courier depot.

From a glass fiber pulled over an alcohol burner in 1976 to seven of the world's top ten module vendors, China built its optical industry in reverse order — cable first, then equipment, then modules, and only now the chips at the top.

给盘盘猫做了一次从灵魂到呈现的完整体检，结论挺离谱：最值钱的三样东西——记忆、人格、统一体验——代码全在仓库里，没有一样真的跑在用户面前。

和朋友争论 Mio 该走疗愈树洞还是恋爱模拟,争到最后发现两条路都不对。

Last time I taught a few Claude accounts to rotate themselves — but I was still chained to my laptop.

上一篇让几个 claude 账号自己换着用，人还是拴在电脑前。

I run several Claude accounts and kept hitting the 5-hour wall mid-session.

天天用 claude code 的人都撞过五小时用量墙，切号还要重新登录，正在跑的 session 也会丢。

AI 把讲授的边际成本打到零，教育史上第一次，瓶颈从'谁来教'搬到了'人为什么想学'。

AI has driven the marginal cost of instruction to zero, and for the first time in the history of education the bottleneck has moved from 'who will teach' to 'why would anyone want to learn.'

模型越强，你说不清楚想要什么的代价越大。

Reactions to an interview with Tulong (Yang Ying) — Tsinghua biology, a Pittsburgh PhD decoding the brain for the US military, who came home and built four companies in a world of "accountants driving Ferraris and influencers showing up with gangster boss…