笔记

• 我们很在意自己给别人留下了什么印象，我们倾向于认为别人给予我们的关注比实际要多（焦点效应）。
• 我们也倾向于认为我们的情绪总是表现得比实际情况更明显（透明度错觉）。

–《社会心理学》

一个好的理论应该具有以下特征： ▪ 能有效概括大量的观察结果； ▪ 能做出清晰的预测，以便于我们： ▪ 确证或修正理论； ▪ 激发新的探索； ▪ 指出可能的应用方向。

起床了，没啥事，要不去公司吧。

有点期待 Lex Fridman 采访 Donald Trump 的节目了。

聪明工程师最常见的错误是优化不应该存在的东西。

尝试了一下，我单杠果然吊不到 100 秒，也就 70 秒左右。

最近都在用自家的 read it later 产品了。感觉有无数新想法想往里加，还是得控制一下，先尽可能不加，稳定可靠先。

https://mp.weixin.qq.com/s/Gd-QWHQrIfuuz5R0WqA0Ug，Duolingo 如何重新点燃用户增长，虽然是去年的文章，但是仔细看了想了，应该对我们会有一定的帮助。现在这个大环境下，还是精细化点好，能活长久些。

起床一会了，打算把 Lenny 二月份写过那篇多邻国的文章，挑重点翻成中文发公众号。

这次看《刀锋》，比之前看有感觉。似乎看到了各种人生。或许值得把中学以来看过的文学名著重看一遍。

当然，也可能是和 AI 结对阅读，给我打来了更深的阅读感受。

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/