回归规律的生活，多陪家人，早睡早起，锻炼身体，健康饮食，多思考多实践，少社交。

其实我觉得网约车最好的地方就是解压。我不需要上车后跟司机说去哪儿，甚至可以设置了上车别理我，到了别给我打电话。一切都很符合社恐人士。

我有个习惯，应该是一种强迫症：出门旅行之前，会尽量把所有电子设备充电充到 100%，哪怕是 98% 我都会有些不自在。估计有不少朋友跟我一样吧。

胡适的治学方法三讲，讲得也很好，哪怕放到现在，也挺实用的呢。

I think of Perplexity as a knowledge discovery engine, neither a search engine. Of course, we call it an answer engine, but everything matters here. The journey doesn’t end once you get an answer. In my opinion, the journey begins after you get an answer. You see related questions at the bottom, suggested questions to ask. Why? Because maybe the answer was not good enough, or the answer was good enough, but you probably want to dig deeper and ask more.

• Aravind Srinivas

几个简单的原则造就了维基百科，这是原则之一：

We’re always making sure we can cite what it says, what we write, every sentence. Now, what if we ask the chatbot to do that? Then we realized, that’s literally how Wikipedia works.

In Wikipedia, if you do a random edit, people expect you to actually have a source for that, and not just any random source. They expect you to make sure that the source is notable. There are so many standards for what counts as notable and not. He decided this is worth working on.

The first employee we hired came and asked us about health insurance. Normal need, I didn’t care. I was like, “Why do I need a health insurance? If this company dies, who cares?” My other two co-founders were married, so they had health insurance to their spouses, but this guy was looking for health insurance, and I didn’t even know anything.

Who are the providers? What is co-insurance, a deductible? None of these made any sense to me. You go to Google. Insurance is a category where, a major ad spend category. Even if you ask for something, Google has no incentive to give you clear answers. They want you to click on all these links and read for yourself, because all these insurance providers are bidding to get your attention.

We integrated a Slack bot that just pings GPT 3.5 and answered a question. Now, sounds like problem solved, except we didn’t even know whether what it said was correct or not. In fact, it was saying incorrect things. We were like, “Okay, how do we address this problem?” We remembered our academic roots. Dennis and myself were both academics. Dennis is my co-founder. We said, “Okay, what is one way we stop ourselves from saying nonsense in a peer reviewed paper?”

We’re always making sure we can cite what it says, what we write, every sentence. Now, what if we ask the chatbot to do that? Then we realized, that’s literally how Wikipedia works. In Wikipedia, if you do a random edit, people expect you to actually have a source for that, and not just any random source. They expect you to make sure that the source is notable. There are so many standards for what counts as notable and not. He decided this is worth working on.

It’s not just a problem that will be solved by a smarter model. There’s so many other things to do on the search layer, and the sources layer, and making sure how well the answer is formatted and presented to the user. That’s why the product exists.

• Aravind Srinivas

这似乎就是 pplx 的起源了。

We took this principle and asked ourselves, what is the best way to make chatbots accurate, is force it to only say things that it can find on the internet, and find from multiple sources.

• Aravind Srinivas

When I wrote my first paper, the senior people who were working with me on the paper told me this one profound thing, which is that every sentence you write in a paper should be backed with a citation, with a citation from another peer reviewed paper, or an experimental result in your own paper.

Anything else that you say in the paper is more like an opinion. It’s a very simple statement, but pretty profound in how much it forces you to say things that are only right.

• Aravind Srinivas

有些朋友不明白为什么我要用 Calendar，同时还要用 Todo。

我的用法是：Calendar 用来记录“和其他人一起的事情”，比如开会、聚餐等。因为是和其他人一起，就有很强烈的时效性，比如约好了 8 点开会，我 10 点到，会耽误别人的时间。属于不能错过，过时就没用甚至不再需要做了的。

而 Todo 更多是我自己的事，比如写文章、阅读、测试软件、买东西等。这些事只跟我自己有关，就算我设了个完成时间，过时了也无所谓，而且过时了也还需要显示出来并且提醒我——谁让我是个拖延症患者呢。

顺便再推荐一个小作品 EasyDay：https://easyday.app/zh/easy_day/

会不会有人跟我一样，没看奥运开幕式，也完全没看任何奥运比赛的直播/转播？

说起网证服务平台，我其实觉得还蛮好的。原因是：

• 按照法律法规，本来上网就要实名，但因技术不成熟，开发者为了合规，必须采集用户信息，包括但不限于身份证、手机号等。
• 同样按照法律法规，这些信息的保存、使用其实非常敏感。

就我们的业务而言，我们最早就一个微信 SSO 登录后，我们什么都不拿，连密码都没有。后来为了合规，要手机号、要身份证信息、要银行卡信息……

这些信息要了之后，其实战战兢兢。我巴不得有一天可以直接全部销毁。毕竟怀璧其罪。

大家日常通勤的背包用的是啥？我背了 4 年 Peak Design 20L，整体很满意，各种细节设计以及质量都很好。唯一的缺点就是稍重，空包也接近两公斤。刚刚看 YouTube 刷到 Aer Tech Pack 据说更舒适，又看 PD 有 Zip 版本 15L，不知道还有没有更舒适轻便的选择？

闲着也是闲着，顺手用 vitepress 给 https://slax.com 搭了个官网（真是方便）。首页上写着的：

• Pinpoint: Solving real, acute pain points with precision.
• Longterm: Decade-scale commitment. Building cumulative value like a snowball on a long, snow-rich slope.
• Simplicity: Essential and intuitive. Following natural patterns for clean, effortless design that requires no training.
• Difference: Delivering unique value in everything we do.

是现在想着的产品原则。前俩是选方向——找小落点 & 长坡厚雪长期做。后两个是细节，要简单自然，要有不同。

看了胡适的日记，昨天开始，我又写起了日记。

在看胡适的文章，喜欢。之前没怎么看过，或许是小时候看到过“批判胡适”的文字。

用网络不方便带来的烦躁感一点点累积，每次在 github chatgpt claude perplexity 等产品拦/被拦的时候，就会有点情绪。这样时不时被打断，虽然表面影响不大，但让人很难长时间流畅地做事，很不痛快。

买了磨砂版的 iPad Pro 之后，挺喜欢这样看书的。过些天回家，试试在大屏 eink 上这样使用是不是顺畅。

其实，就说“全力以赴”这四个字，都很难做到。

之所以这么说，是回想起几次产品快挂了的时候，我都是有些疲惫地想放弃的。如果不是有好朋友鼓励，以及还有那么点责任感，其实不容易再继续往前走。

但是，决定了往前走之后，拼尽全力，会发现，其实还真的能救回来，也没那么难。

但是，再一次遇到问题时，还是会同样疲惫，同样挣扎。

上午和小伙伴讨论了一下，感觉很快可以收费了啊，至少满足了我的需求。