（01:25）備忘の為に、フェースブックがIPOに関連してSECに提出した書類への付属文書として添付した「ザッカーバーグからの手紙」の全文を残しておきます。

「Focus on Impact」「Move Fast」「Be Bold」「Be Open」「Build Social Value」の５つの「コア・バリュー」が興味深いし、「The Hacker Way」という単語も 初めて知りました。勉強不足ですね。

こういう会社が次々と出てくるのが、アメリカの強みだと思う。気になった単語は「rewire」かな｡「人と人との関係を配線し直す」ね｡文章としては「we hope to rewire the way people spread and consume information.We think the world's information infrastructure should resemble the social graph -- a network built from the bottom up or peer-to-peer, rather than the monolithic, top-down structure that has existed to date.」なんか｡

むろん「a network built from the bottom up or peer-to-peer」はいいし､チュニジアでもエジプトでもそれが権力の転覆に繋がったのだけれど､ rather than以下が､つまり「 the monolithic, top-down structure that has existed to date.」が国家組織だったりするので､人間の社会はそういうものがないと収まらないとも考えられる｡そことの折り合いをどうつけるのか､など｡

ちょっと長いですが､すがすがしい文章だと思う｡興味ある方はお読み下さい｡赤は私が勝手に入れました｡ちょっと興味をもったところ｡

LETTER FROM MARK ZUCKERBERG

Facebook was not originally created to be a company. It was built to accomplish a social mission ― to make the world more open and connected.We think it's important that everyone who invests in Facebook understands what this mission means to us, how we make decisions and why we do the things we do. I will try to outline our approach in this letter.

At Facebook, we're inspired by technologies that have revolutionized how people spread and consume information. We often talk about inventions like the printing press and the television ― by simply making communication more efficient, they led to a complete transformation of many important parts of society. They gave more people a voice. They encouraged progress. They changed the way society was organized. They brought us closer together.

Today, our society has reached another tipping point. We live at a moment when the majority of people in the world have access to the internet or mobile phones -- the raw tools necessary to start sharing what they're thinking, feeling and doing with whomever they want. Facebook aspires to build the services that give people the power to share and help them once again transform many of our core institutions and industries.

There is a huge need and a huge opportunity to get everyone in the world connected, to give everyone a voice and to help transform society for the future. The scale of the technology and infrastructure that must be built is unprecedented, and we believe this is the most important problem we can focus on.

We hope to strengthen how people relate to each other.

Even if our mission sounds big, it starts small ― with the relationship between two people.

Personal relationships are the fundamental unit of our society. Relationships are how we discover new ideas, understand our world and ultimately derive long-term happiness.

At Facebook, we build tools to help people connect with the people they want and share what they want, and by doing this we are extending people's capacity to build and maintain relationships.

People sharing more -- even if just with their close friends or families -- creates a more open culture and leads to a better understanding of the lives and perspectives of others. We believe that this creates a greater number of stronger relationships between people, and that it helps people get exposed to a greater number of diverse perspectives.

By helping people form these connections, we hope to rewire the way people spread and consume information.We think the world's information infrastructure should resemble the social graph -- a network built from the bottom up or peer-to-peer, rather than the monolithic, top-down structure that has existed to date. We also believe that giving people control over what they share is a fundamental principle of this rewiring.

We have already helped more than 800 million people map out more than 100 billion connections so far, and our goal is to help this rewiring accelerate. We hope to improve how people connect to businesses and the economy. We think a more open and connected world will help create a stronger economy with more authentic businesses that build better products and services. As people share more, they have access to more opinions from the people they trust about the products and services they use. This makes it easier to discover the best products and improve the quality and efficiency of their lives.

One result of making it easier to find better products is that businesses will be rewarded for building better products -- ones that are personalized and designed around people. We have found that products that are "social by design" tend to be more engaging than their traditional counterparts, and we look forward to seeing more of the world's products move in this direction.

Our developer platform has already enabled hundreds of thousands of businesses to build higher-quality and more social products. We have seen disruptive new approaches in industries like games, music and news, and we expect to see similar disruption in more industries by new approaches that are social by design.

In addition to building better products, a more open world will also encourage businesses to engage with their customers directly and authentically. More than four million businesses have Pages on Facebook that they use to have a dialogue with their customers. We expect this trend to grow as well. We hope to change how people relate to their governments and social institutions.

We believe building tools to help people share can bring a more honest and transparent dialogue around government that could lead to more direct empowerment of people, more accountability for officials and better solutions to some of the biggest problems of our time.

By giving people the power to share, we are starting to see people make their voices heard on a different scale from what has historically been possible. These voices will increase in number and volume. They cannot be ignored. Over time, we expect governments will become more responsive to issues and concerns raised directly by all their people rather than through intermediaries controlled by a select few.

Through this process, we believe that leaders will emerge across all countries who are pro-internet and fight for the rights of their people, including the right to share what they want and the right to access all information that people want to share with them.

Finally, as more of the economy moves towards higher-quality products that are personalized, we also expect to see the emergence of new services that are social by design to address the large worldwide problems we face in job creation, education and health care. We look forward to doing what we can to help this progress.

Our Mission and Our Business

As I said above, Facebook was not originally founded to be a company. We've always cared primarily about our social mission, the services we're building and the people who use them. This is a different approach for a public company to take, so I want to explain why I think it works.

I started off by writing the first version of Facebook myself because it was something I wanted to exist. Since then, most of the ideas and code that have gone into Facebook have come from the great people we've attracted to our team. Most great people care primarily about building and being a part of great things, but they also want to make money. Through the process of building a team ― and also building a developer community, advertising market and investor base ― I've developed a deep appreciation for how building a strong company with a strong economic engine and strong growth can be the best way to align many people to solve important problems.

Simply put: we don't build services to make money; we make money to build better services.

And we think this is a good way to build something. These days I think more and more people want to use services from companies that believe in something beyond simply maximizing profits.

By focusing on our mission and building great services, we believe we will create the most value for our shareholders and partners over the long term ― and this in turn will enable us to keep attracting the best people and building more great services. We don't wake up in the morning with the primary goal of making money, but we understand that the best way to achieve our mission is to build a strong and valuable company.

This is how we think about our IPO as well. We're going public for our employees and our investors. We made a commitment to them when we gave them equity that we'd work hard to make it worth a lot and make it liquid, and this IPO is fulfilling our commitment. As we become a public company, we're making a similar commitment to our new investors and we will work just as hard to fulfill it.

The Hacker Way

As part of building a strong company, we work hard at making Facebook the best place for great people to have a big impact on the world and learn from other great people. We have cultivated a unique culture and management approach that we call the Hacker Way.

The word "hacker" has an unfairly negative connotation from being portrayed in the media as people who break into computers. In reality, hacking just means building something quickly or testing the boundaries of what can be done. Like most things, it can be used for good or bad, but the vast majority of hackers I've met tend to be idealistic people who want to have a positive impact on the world.

The Hacker Way is an approach to building that involves continuous improvement and iteration. Hackers believe that something can always be better, and that nothing is ever complete. They just have to go fix it -- often in the face of people who say it's impossible or are content with the status quo. Hackers try to build the best services over the long term by quickly releasing and learning from smaller iterations rather than trying to get everything right all at once. To support this, we have built a testing framework that at any given time can try out thousands of versions of Facebook. We have the words "Done is better than perfect" painted on our walls to remind ourselves to always keep shipping.

Hacking is also an inherently hands-on and active discipline. Instead of debating for days whether a new idea is possible or what the best way to build something is, hackers would rather just prototype something and see what works. There's a hacker mantra that you'll hear a lot around Facebook offices: "Code wins arguments."

Hacker culture is also extremely open and meritocratic. Hackers believe that the best idea and implementation should always win -- not the person who is best at lobbying for an idea or the person who manages the most people. To encourage this approach, every few months we have a hackathon, where everyone builds prototypes for new ideas they have. At the end, the whole team gets together and looks at everything that has been built. Many of our most successful products came out of hackathons, including Timeline, chat, video, our mobile development framework and some of our most important infrastructure like the HipHop compiler.

To make sure all our engineers share this approach, we require all new engineers -- even managers whose primary job will not be to write code ― to go through a program called Bootcamp where they learn our codebase, our tools and our approach. There are a lot of folks in the industry who manage engineers and don't want to code themselves, but the type of hands-on people we're looking for are willing and able to go through Bootcamp.

The examples above all relate to engineering, but we have distilled these principles into five core values for how we run Facebook:

Focus on Impact

If we want to have the biggest impact, the best way to do this is to make sure we always focus on solving the most important problems. It sounds simple, but we think most companies do this poorly and waste a lot of time. We expect everyone at Facebook to be good at finding the biggest problems to work on.

Move Fast

 

Moving fast enables us to build more things and learn faster. However, as most companies grow, they slow down too much because they're more afraid of making mistakes than they are of losing opportunities by moving too slowly. We have a saying: "Move fast and break things." The idea is that if you never break anything, you're probably not moving fast enough.

Be Bold

Building great things means taking risks. This can be scary and prevents most companies from doing the bold things they should. However, in a world that's changing so quickly, you're guaranteed to fail if you don't take any risks. We have another saying: "The riskiest thing is to take no risks." We encourage everyone to make bold decisions, even if that means being wrong some of the time.

Be Open

We believe that a more open world is a better world because people with more information can make better decisions and have a greater impact. That goes for running our company as well. We work hard to make sure everyone at Facebook has access to as much information as possible about every part of the company so they can make the best decisions and have the greatest impact.

Build Social Value

Once again, Facebook exists to make the world more open and connected, and not just to build a company. We expect everyone at Facebook to focus every day on how to build real value for the world in everything they do.

Thanks for taking the time to read this letter. We believe that we have an opportunity to have an important impact on the world and build a lasting company in the process. I look forward to building something great together.

（11:25）
「あれ、東京マラソンっていつ？」と思って調べたら、今月２６日でした。

というのは、皇居周りを走るランナーの数が明らかに増えているのです。１月の初めに比べると、二倍くらいでしょうか。参加する人の足慣らし？　参加しない人も来年を考えて走り始めた？

寒いっすよ。しかし、何か暖かい。それは冬至を過ぎて例え朝でも日差しが強くなってきたからです。夜明けも少しずつだが早くなっていて、東京の場合は以前は６時４５分くらいでなければ明るくならなかったが、今は１５分ほど速い。

道はどこでもあるのに、なぜ「皇居周り」か。「あんな空気の悪いところを」と私も思っていました。しかし、回ってみるといくつか理由がある。

実際的な理由は、まず「信号がない」ということでしょうか。歩き、走る人間にとってです。皇居周りと言ってもインナー、アウターいろいろある。私にとってアウターは、反時計変わりでは竹橋で右に折れて九段下に出て、千鳥ヶ淵を走ってのコースですが、ここでは代官町通りの所に一つだけ信号がある。しかしそれだけ。

インナーでは全く信号がない。一般の道ではそうはいかない。信号だらけです。その度にペースチェンジしなければならない。これはつらい。だから、「信号のない場所」がポイントで、そこら中に公園とかあるのでそれでも良いのですが．．．．．しかし違う。

それは「気の集まり」かもしれないと思う。皇居は東京の精神的中心にあって、過去、現在を問わずいろいろな人の「気」が集まっている。これは重要なポイントです。

日韓共催ワールドカップの時に、確か日本はトルコとの戦いを宮城スタジアムで行った。私も行ったが、畑の中にポツンと球場があった。その当時の代表監督のトリシェが「あんな球場でやるからだ」と言っていたが、それは本当だ。

球場には「点」としての気の集合があり、観客の大部分は日本を応援した。しかし、球場の周りにあったのは、大根や菜っ葉だ。「気」が面ではなかった。国立だったら違った、と思う。

「目」がある、「気」がある、というのは走っている人間にとっては重要です。マラソンの優勝者のインタビューを聞いていると、「沿道の声援に推されて．．．．」「声援が凄かった」と必ず言う。それは本当だと思う。人間は他人の「目」や「気」で走る動物です。その点で皇居周りは優れ場所です。

ところで今日一走りしたあと計量したら「７１．６５」だった。７２が目標だったので達成。ナイス。ピークは７８．５だったので、結構来た｡冬での減量と絞りは価値がある、と思ってみたり。ははは。ここで当面軟着陸です。

　（10:25）今朝の東京は気持ちよく寒かった｡好きですね､この寒さ｡刺すようなにビリピリする｡ニューヨークのそれ､札幌のそれみたいで｡空は雲一つなかった｡

　いつもはスタンバイが終わると車で送ってもらうのですが､今日は「よっしゃ､歩こう」と思って歩いていたら､「うーん､この寒さはこの数年の東京では経験したものではないな」と｡まあ､だから歩きたいと思ったのでしょう｡ただし､帰着したら体を温めるのにちょっと時間がかかった｡熱い風呂に入ったり｡

　ところで､今朝おもしろい現象に気がつきました｡数日前に紹介したように､LTEをループ的に使って仕事の効率を上げるようにしているのですが､ARROWS X LTE F-05DをUSBに差し込んだままにwiodows pc を立ち上げようとすると､立ち上がらないという現象です｡

　読み込みが途中で止まるのです｡それはたぶん私のPCの立ち上げ情報の読み込み順位が､USB接続先を優先しているために､ほとんどPCと同程度の能力を持つスマホの何かの情報が､PCの立ち上げを阻害しているのだと思う｡

　これはiphone では起きない現象で､それは多分iphoneの場合はitunes との整合性がとれているからだと思う｡それに思い至るまで「俺のPCは壊れたのかな」と思った｡

　むろん機種依存の現象かもしれない｡そのときに使ったPCはパナソニックのレッツノート（CF-J9）です｡この問題をクリアするには､PCの立ち上げの時にはスマホに対する電力供給のためのUSBは外しておくことが考えられる｡

　まあ私と同じような現象が起きている人に参考になればと思います

　（10:25）今週二回目の大阪行きの新幹線の中ですが､最近の私のループ的な仕事環境をちょっと紹介しましょう｡役立つ方もいらっしゃるかもしれない｡LTEと３Ｇが頻繁に入れ替わるこの列車の中では無理ですが､LTEが安定している大きな都市ではこれが有効です｡

　写真の通りなのですが､何がループかというと､スマホのテザリング利用は電池使用ペースが速い｡で､PCからUSBを通して電気をスマホに供給し続けます｡これだと電池の減少を気にしなくて済む｡一方で給電してくれるPCにはスマホからLTEの速い電波を提供するのです｡

　LTEが安定的に使えるところは､これが一番快適な仕事環境です｡LTEの供給先はiphone であったり､ipad であったりもする｡他のwindows pcもこれで快適に動きます｡ま､これを全国どこでも使うには､LTEが安定的に（これが重要ですが）繋がる地域を劇的に増やさなければいけない｡

　まだちょっとLTEの境目は不安定です｡新幹線の中もLTE接続にして欲しい｡まだポケットwifi があちこちで必要｡これはちょっと残念です｡あそうそう､スマホに電力を供給しているPCの電池の減り方は､そうでない時より速い気がする｡だから､PCは電源に繋いでおいた方がいい｡

　もう一つ｡ガラケーをスマートフォンにして以来ちょっと「ややこしいな」と思っていたのは､電話帳が重複だらけになることでした｡これは今までのドコモの電話帳を引き継ぐ一方で､グーグルの住所録などなどをスマホがクラウドから持ってきてしまっているため｡

　重複も､二重ではなく何重にもなっていた｡そのうちドコモショップに聞きに行こうと思っていたが､ちょっと考えて「電話帳」の設定をいじってみようと思ったのです｡電話帳を開いて設定が入っている「その他」を開けた｡

　その中に「表示オプション」というのがあって､私の場合は上から

　「docomo」
　「....@gmail.com」
　「ycastercom」

　となっている｡一番最後は私がツイッターで使っているハンドルです｡上二つにチェックが入っていたので､電話帳で同じ名前が重複するのは当然｡上から二番目はgmail アドレス｡ 　で､docomo以外のチェックを全部外した｡そしたら見事､電話帳の重複はなくなりました｡一つすっきりした感じ｡