Lin Kobayashi | 小林りん

ユナイテッド・ワールド・カレッジISAKジャパン代表理事。80ヶ国以上から集う200名の高校生が学んでおり、皆様からのふるさと納税のお陰で、生徒の7割に家庭の経済状況に応じた奨学金を給付しています。中高生２児の母。UWC International、国際文化会館、米日財団、Education Beyond理事。

[Lin Kobayashi | 小林りん @linkobayashi]

人を率いるリーダーに必要なのは「強さ」かも知れないけれど、人に支えてもらえるリーダーに必要なのは「弱さ（不完全さ？）」かも知れないと思う、今日この頃。そして本当に強くなくてはいけないのは、性格や物の言い方じゃなくて、事業に対する信念と、中身へのこだわりなんじゃないかとも。

[Lin Kobayashi | 小林りん @linkobayashi]

あくまで自分の頭で考えられるベースを築いた上で、AIを活用する術を身につけていく、という順序（考え方）は正しい気がします。いつのタイミングで…というのは判断が分かれるところではありますが。

ノルウェー、小学校でAI利用禁止：日本経済新聞 https://t.co/s5hpujNE07

[Lin Kobayashi | 小林りん @linkobayashi]

一日2時間森の中を歩くと、1ヶ月ほどの間、免疫力に強く関連する細胞が50%活発化する！？との論文があるそうです。

毎朝(一応森に囲まれた)軽井沢の我が家で雑草抜いてるのも、同様にストレス軽減と免疫力アップの効果があるんだろうか…笑

[Millie Marconi @MillieMarconnni]

A Japanese immunologist spent 20 years proving that the chemicals trees release into the air walk into your bloodstream, hunt down your stress hormones, and arm your immune system in ways no therapist or pharmaceutical has ever matched, and most of the data has been sitting in Japanese medical journals for two decades waiting to be translated.

His name is Qing Li.

He is a clinical professor at Nippon Medical School in Tokyo and the president of the Japanese Society of Forest Medicine. The Japanese government has been funding his research since 2004, and the body of work he has produced is the reason forest bathing is now an officially prescribed clinical therapy in Japan and Korea.

The story actually starts in 1982, when the Japanese Ministry of Agriculture, Forestry and Fisheries coined the term shinrin-yoku to describe the practice of slow, mindful walking in a forest. They did it for a practical reason.

Japan was urbanizing fast, stress-related illness was climbing, and the country had thousands of square kilometers of forest sitting unused. The idea was to give people a reason to walk into the trees... They had no idea what was actually happening to the human body during those walks until Qing Li ran the first proper experiment in 2005.

He took twelve healthy adult men on a three-day, two-night trip to a forest park. They walked for a few hours each day. Nothing strenuous. No prescribed routes or breathing exercises. They simply walked slowly through the trees, breathing the air, looking at the forest.

Li drew blood and urine samples before the trip, on the second day, on the third day, on day seven after returning home, and again on day thirty.

The numbers that came back from the lab were not what anyone expected.

The activity of a specific type of immune cell called the natural killer cell, which is the cell your body uses to hunt down cancer cells and virus-infected cells before they can spread, had jumped by roughly 50 percent during the forest trip. The actual number of natural killer cells circulating in the bloodstream had increased significantly.

Three different anti-cancer proteins that those cells produce, called perforin, granzymes, and granulysin, had all risen sharply. And the effect did not disappear when the men went home. The immune boost was still measurable on day seven and was still partially present on day thirty.

Two hours a day in a forest had upgraded the immune system for a full month.

Li ran the same experiment with women a year later and found nearly identical results. Then he ran it with a control group who took a three-day trip through an urban area with the same amount of walking, the same hotel quality, and the same diet.

The urban group showed no measurable change in natural killer cell activity at all. The forest was doing the work, not the vacation.

The mechanism turned out to be a class of airborne molecules called phytoncides. Trees produce these compounds to defend themselves against insects, bacteria, and fungi. Pine, cedar, oak, and cypress trees release them in particularly large amounts, especially in warmer weather and after rainfall.

When you walk through a forest, you are inhaling those molecules into your lungs and absorbing them through your skin, and once inside your body they appear to directly stimulate the production and activity of the very immune cells Li was measuring in his lab.

Roughly 50 percent of the health benefit of a forest walk, according to Li's data, comes from the chemistry of the air itself. The other half comes from what the forest is doing to your nervous system.

This is where it stops being only about the immune system and starts being about stress.

A separate Japanese research team measured cortisol, the body's main stress hormone, in 84 participants across 35 different forest sites. They drew samples before and after a 30-minute walk in each forest and compared them to control walks in matched urban environments. The cortisol levels of the people who walked in the forest were lower than the cortisol levels of the people who walked in the city by a significant margin. Their heart rates were lower. Their blood pressure was lower.

The activity of their parasympathetic nervous system, which is the part responsible for rest and recovery, had gone up. The activity of their sympathetic nervous system, which is the part that drives fight or flight, had gone down.

Then a researcher at the University of Michigan named MaryCarol Hunter ran the cleanest version of this experiment ever done. She recruited participants from a city and told them to take a nature pill three times a week for eight weeks.

They were free to choose the time, the place, and the duration of the nature experience, as long as it was outside, in daylight, and free of phones, conversations, and aerobic exercise. They sent her saliva samples before and after each session so she could measure cortisol changes accurately and rule out the normal daily drop in stress hormones that happens to everyone.

The result was that participants experienced a 21.3 percent drop in cortisol per hour spent in nature, with the biggest payoff happening between minutes 20 and 30 of the walk.

After that, the cortisol kept dropping, but more slowly. The threshold dose for measurable stress relief was just 20 minutes outside in something that looked and felt like nature.

What none of this means is that nature is a substitute for therapy or for medication when someone genuinely needs them. Therapy treats different things than a walk does, and Li himself has been careful in interviews to call forest bathing a complementary intervention rather than a replacement for clinical care.

But what the research has settled is that the human body has a physiological response to being among trees that operates on the same biological systems modern medicine is trying to reach with drugs and clinical protocols, and that response is fast, measurable, and free.

The strangest part of Li's work is the implication he keeps repeating in interviews. The average person now spends more than 90 percent of their life indoors. Their cortisol stays elevated. Their natural killer cells stay sluggish.

Their parasympathetic nervous system rarely gets a chance to take over. The system that was tuned by millions of years of life under a canopy of trees is being asked to run permanently inside a box made of drywall and screens.

Your body has not forgotten what it is supposed to do in a forest. It is waiting for you to walk into one.

[Kaz Ataka / 安宅和人 @kaz_ataka]

Natureの「AIを使わないと取り残される不安」に続き、UC Berkeley LawのAIポリシーが示唆的。

Berkeleyはシリコンバレー生態系のヘソの一つ。そのLaw Schoolが、AIを学ぶ必要性を認めつつ、成績評価に関わる構想、構成、執筆、修正、編集、翻訳へのAI利用を原則禁止し、試験では一切禁止する判断をした。

これはAI否定ではない。将来の法律家はAIを使える必要がある。しかし、法廷や依頼人の前で問われるのは、人間の思考、分析、判断、責任だ。存在しない判例を引用すれば終わる世界で、AIの出力を「上のレイヤーからデバッグすればよい」という話では済まない。

プリンターの中身を知らなくてよい、という話とは全く違う。問題はAIを使うか否かではない。使うほど短期的には強くなる。一方で、人間が現実と格闘し、判断力を育てる回路をどう残すか。ここがAI native時代の本丸だと思う。

https://t.co/WruAH604Yo
https://t.co/q88Zy2Tnbh
https://t.co/Kef4y5yuFr

[Lin Kobayashi | 小林りん @linkobayashi]

ISAKの生徒達も、地域でゴミ拾いをしたりお祭りの準備を手伝ったり。温かく受け入れて頂き感謝しています。

――APUが開学した時も反対運動がありました。
「治安が悪化するのではないかといわれた。実際に留学生が来日すると普通に付き合えるね、という理解が広がった。」
https://t.co/LjJuVz9FDD

[Lin Kobayashi | 小林りん @linkobayashi]

米国で凄い勢いで拡散されている論文。「AIの更なる進化→益々進む解雇→消費する経済力のある人がいなくなる→経済破綻」。これに対する唯一の解はベーシックインカムではなく「AIが雇用を代替する度に課税」とする、ペンシルバニア大研究者のもの。こんな時代の教育の役割について考えさせられます…

[Jack @jackcoder0]

Two economists just published a mathematical proof that AI will destroy the economy.

Not might. Not could. Will — if nothing changes.

The paper is called "The AI Layoff Trap." Published March 2, 2026. Wharton School, University of Pennsylvania. Boston University. Peer reviewed. Mathematically modeled.
The conclusion is one sentence.
"At the limit, firms automate their way to boundless productivity and zero demand."

An economy that produces everything. And sells it to nobody.
Here is how you get there.
A company fires 500 workers and replaces them with AI. A competitor fires 700 to keep up. Another fires 1,000. Every company is behaving rationally. Every company is following the incentives correctly. And every company is building a trap for itself.

Because the workers who were fired were also customers.
When they lose their jobs faster than the economy can absorb them, they stop spending. Consumer demand falls. Companies respond by cutting costs — which means automating more workers — which means less spending — which means more falling demand — which means more automation.

The loop has no natural exit.
The researchers tested every proposed solution. Universal basic income. Capital income taxes. Worker equity participation. Upskilling programs. Corporate coordination agreements.
Every single one failed in the model.
The only intervention that worked: a Pigouvian automation tax — a per-task levy charged every time a company replaces a human with AI, forcing them to price in the demand they are destroying before they pull the trigger.

No government has implemented this. No major economy is seriously discussing it.
Meanwhile the numbers are already tracking the curve. 100,000 tech workers laid off in 2025. 92,000 more in the first months of 2026. Jack Dorsey fired half of Block's workforce and said publicly: "Within the next year, the majority of companies will reach the same conclusion."
Nobody is doing anything wrong. Companies are following their incentives perfectly. That is exactly the problem.

Rational behavior. At scale. Simultaneously. With no mechanism to stop it.
Two economists built the math. The math leads to one place.

Source: Falk & Tsoukalas · Wharton School + Boston University ·

[荒井健一 AK @aarai666]

北京に本社を置く RobotEra は、中国郵政、順豊速運（SF Express）グループ、とその他の大手物流事業者が運営する10カ所以上の物流センターに、L7人型ロボットを導入し始めた。

一部の物流センターでは、これらのAIロボットが24時間365日、稼働しており、人間の作業効率の85％以上に達しているという。

同社は今年第2四半期から、千台規模でのロボット量産出荷を開始する計画とのこと。

[Reuters @Reuters]

Japan Airlines will trial humanoid robots for baggage handling and aircraft cleaning at Tokyo's Haneda Airport starting in May, citing workforce shortages and rising tourist numbers

[Lin Kobayashi | 小林りん @linkobayashi]

AIとデータサイエンティストが、所謂「文系人材」を駆逐していく動きは、向こう数年は続くと思います。問題は、その後。AIと共に人類のために、どんな課題に挑むのか…その「問い」を立てられる人の育成が急務だと感じます。

余る文系人材80万人　データサイエンス必須にhttps://t.co/rurF3wwxD7

[Lin Kobayashi | 小林りん @linkobayashi]

学校という閉ざされた社会だけでなく、広く実社会で経験を積まれた方が教壇に立つ意味は、とても大きいと思います。英語や情報のみならず、他の科目にもこの動きが広がっていくことを願っています。

通訳・エンジニアを先生に　特別免許授与、5年で2.6倍：日本経済新聞 https://t.co/fn8SyXxnPX

[Lin Kobayashi | 小林りん @linkobayashi]

真っ当な意見。

「現在は補助金により、原油価格の高騰が店頭のガソリン価格などに十分反映されていない。補助金の廃止により「これまで以上に価格へ反映させることを通じ、市場メカニズムで石油消費を調整すべきだ」との提案もあった。」

原油高「消費抑制策を」66%　https://t.co/MUB2ZWTr7C

[Lin Kobayashi | 小林りん @linkobayashi]

委員を務める中教審WGでの議論。大学等の授業受講のみならず、小中学校に居ながら得意分野を伸ばすプログラムへの参加も可能になるかも知れません。「才能がある子どもに対して、横並びを要求するあまり指導や支援の蓄積が不十分だった」との認識が広まってきたことに感謝。

https://t.co/AxDenT6Lxz

[Founder Mode @Founder_Mode_]

This 50 mins Standford lecture by Peter Thiel will teach you more about building a business from ZERO to ONE than any business degree:

[Lin Kobayashi | 小林りん @linkobayashi]

『知の未来図』シリーズ、今回は複数の違うタイプの国や教育法を紹介していて面白い。"唯一絶対の正解"がない教育の世界。重要なのは「選択肢の多様性」だと改めて感じさせられる良記事。

英国2500校に広がる　AI時代の新授業　育むのはディベート力、聞く力、説明する力　https://t.co/IQwf29Bm7X

[Lin Kobayashi | 小林りん @linkobayashi]

とても参考になりました。見逃した方のために:

投開票日まで1週間　税収最大の柱「消費税」与野党とも「減税」で争点見えにくい衆議院選挙　財源議論は？
https://t.co/OKQDg4px6Q

[シードベンチャーキャピタルANRI @ANRI_VC]

【ANRI Podcast 最新話🎉】

今回のゲストは前回に引き続き、「学校法人ユナイテッド・ワールド・カレッジISAKジャパン」代表理事の小林りんさんです✨ISAKという学校をつくるまでの許認可やハード・シングス、今後成し遂げたいことについてお聞きします‼️

#042 万が一のリスクに常に備える。小林さんのハード・シングスからの学びとは【ゲスト：ISAKジャパン代表理事 - 小林りんさん】

🎙Topics
・日本の公教育のコストパフォーマンス
・「９月入学」と「特別免許」の壁
・「ふるさと納税」を奨学金の原資に
・日本に保存されてきたアジア圏の価値観
・模索中のプロジェクトについて
・座右の銘にしている哲学者アランの言葉

https://t.co/xY9rm8lLrh

＃ハートに火をつけろ

[佐俣アンリ @Anrit]

ポッドキャスト更新しました！
今回は軽井沢のインターナショナルスクールISAKの創業者小林りんさん @linkobayashi
ISAKを作るまでのハードシングスに加えて、これからの人生で挑戦したいことを聞き出しちゃいました。
https://t.co/Urv20rX5Ma

--トピック--
・日本の公教育のコストパフォーマンス
・「９月入学」と「特別免許」の壁
・「ふるさと納税」を奨学金の原資に
・日本に保存されてきたアジア圏の価値観
・模索中のプロジェクトについて
・座右の銘にしている哲学者アランの言葉

[Lin Kobayashi | 小林りん @linkobayashi]

30年前、期末試験で赤点をとって受験戦線から脱落しかけていた私を救ってくれた、1つの奨学金。この2年間がどれだけ自分の視野を広げ、その後の人生の選択肢まで左右するものになろうとは、予想だにできていませんでした。世界が分断される今こそ。

▼UWC 募集要項はこちら
https://t.co/TqiUHRSazn

[Lin Kobayashi | 小林りん @linkobayashi]

こういう取り組み、最高ですね…！

「修学旅行先　生徒が決定　中野区」日経新聞
https://t.co/oluSgo8VXr

[Cyrus Janssen @thecyrusjanssen]

The CEO of the most valuable company in the world just declared:

“China is going to win the AI race”

This is a monumental statement for for two reasons:

1. For years, NVDA sold their microchips to China, a market that was worth $15 billion dollars of revenue to them before the US government put in restrictions.

This backfired immediately on the US as China shifted from being NVDA's number one overseas client to becoming their own inventor, developing their domestic chip industry to compete directly with NVDA.

2. China and the US are moving in polar opposite directions in regards to energy. China is the world leader in renewable energy while Trump is forcing the US double down on fossil fuels.

Who is going to win the AI race? It will be the country who can produce the most amount of electricity in the most cost effective manner.

In this race, China is so far ahead of the US (China can generate electricity for 1/8 the cost of USA in part to solar, wind, hydro) that it really isn't a contest anymore.

Full article👇
https://t.co/843TzmdUaM

[Lin Kobayashi | 小林りん @linkobayashi]

若者の自己肯定感が低いと言われて久しいですが、「生活に十分満足している」と回答した若者は、意外にも1994年の9.4％から2024年には30.0％へと3倍以上に増加。背景には、友人や趣味の時間に次いで「家族との時間」を大切にするZ世代の姿が。
最強メンターは共働きの両親!?
https://t.co/tIFAJSvuFf