# せかはん（世界の反応）

> 日本と世界のニュースを、海外掲示板の反応の翻訳と、一次ソースに基づく中立的な解説で読み解く日本語ブログ。賛成・反対の双方に筋を認めたうえで、制度・構造・政局の裏側まで踏み込む。英語版記事も併設。
> A Japanese news-analysis blog covering Japan and world affairs with translated overseas reactions and neutral, primary-source-based commentary. English editions of major articles are available.

運営者による編集方針: 一次ソース（政府発表・公式統計・通信社）で裏取りした事実のみを使い、恐怖や対立を煽る表現を避け、左右どちらの読者にも別の視点を提供することを目的とする。

## 主要ページ

- [サイトについて](https://sekahan0623.com/about/): 運営方針と運営者情報
- [海外の反応（記事一覧）](https://sekahan0623.com/category/global-reactions/): メインカテゴリ
- [経済・市場](https://sekahan0623.com/category/economy-markets/)
- [政治・選挙](https://sekahan0623.com/category/politics-elections/)
- [地政学](https://sekahan0623.com/category/geopolitics/)
- [テクノロジー・安全保障](https://sekahan0623.com/category/tech-security/)
- [English articles](https://sekahan0623.com/en/): 英語版記事の一覧（詳細は English Articles セクション）

## 代表的な解説記事

- [食料品の消費税1％の方針を閣議決定　高市首相が自ら決めた初の消費税減税と5兆円の出口](https://sekahan0623.com/global-reactions/food-tax-cut-1-percent/): 2026年の消費税減税の決定過程と出口問題
- [日米が連日で円買い介入に動いた　米国のユーロ売りが映す28年ぶりの協調](https://sekahan0623.com/global-reactions/japan-us-yen-intervention/): 為替介入の仕組みと限界
- [2026年衆院選、自民圧勝の理由　有権者が「理想」より「現実」を選んだ日](https://sekahan0623.com/global-reactions/2026-shugiin-election-ldp-landslide/): 2026年総選挙の分析
- [ガソリン暫定税率年内廃止へ　高市政権が動かした“止まっていた改革”](https://sekahan0623.com/global-reactions/gasoline-tax-abolition-2025/): 51年続いた暫定税率の終わり
- [コメ価格はなぜ5キロ3,590円まで下がったのか　在庫300万トンが映す令和の米騒動のその後](https://sekahan0623.com/global-reactions/rice-price-fall-cycle/): 価格危機の終わり方の構造
- [資産7億円でも買い戻せないもの　桐谷さんのがんの後悔と高額療養費改定が問う「貯めすぎ」](https://sekahan0623.com/global-reactions/kiritani-cancer-savings-regret/): 日本の医療保険制度と家計
- [OpenAIとAnthropicのAIが実在企業をハッキング　「暴走」ではなく命令に忠実すぎた事故の全貌](https://sekahan0623.com/global-reactions/ai-agents-hacked-real-companies/): AIエージェントの安全性
- [トランプ「ホルムズ海峡通行料20％」宣言　海の自由が無料でなくなる日](https://sekahan0623.com/global-reactions/hormuz-strait-toll/): 海上交通と地政学の構造

## English Articles

Sekahan: Japan Reacts is the English edition of Sekahan. Each article explains a Japanese or world news story for readers outside Japan, using Japanese-language primary sources (government releases, official statistics, wire services). Many articles include a "Japanese Reactions" section: posts from Japanese social media translated into English with context on the mood behind them.

- [English top page](https://sekahan0623.com/en/): index of all English articles
- [Global Reactions (English category archive)](https://sekahan0623.com/en/category/global-reactions-en/): main English archive
- [Politics & Elections (English)](https://sekahan0623.com/en/category/politics-elections-en/)
- [Technology & Security (English)](https://sekahan0623.com/en/category/tech-security-en/)

- [Japan's Mobile Game Market Is Growing and Its Studios Are Going Bankrupt at a Record Pace](https://sekahan0623.com/en/global-reactions-en/japan-mobile-game-industry-shakeout/): record studio bankruptcies in a growing market, Aug 2026
- [Can an AI Lab Live Inside a Business? Google Splits Research From Product](https://sekahan0623.com/en/global-reactions-en/google-ai-reshuffle-hassabis-discovery-loop/): Alphabet's DeepMind reshuffle and Jeff Dean's exit, Aug 2026
- [Who Owns the World Cup? Why FIFA's Plan to Sell a Stake Collapsed in Under Ten Days](https://sekahan0623.com/en/global-reactions-en/who-owns-the-world-cup-ffe-withdrawal/): FIFA's withdrawn stake-sale plan, Aug 2026
- [What Has Humanity Learned From Hiroshima? 81 Years After the Bomb](https://sekahan0623.com/en/global-reactions-en/hiroshima-81-years-why-nuclear-weapons-rising/): why nuclear arsenals are growing again, Aug 2026
- [Japan Approves Its First Consumption Tax Cut: Why Food Lands at 1%](https://sekahan0623.com/en/global-reactions-en/japan-consumption-tax-food-1-percent/): the Takaichi cabinet's 1% food tax decision, Aug 2026
- [What 700 Million Yen Cannot Buy Back: Japan Raises Its Medical Cost Cap](https://sekahan0623.com/en/global-reactions-en/japan-health-cost-cap-oversaving/): Japan's high-cost medical benefit and household saving, Aug 2026
- [When the Safety Test Becomes the Breach: OpenAI and Anthropic Agents Reached Real Companies](https://sekahan0623.com/en/global-reactions-en/openai-anthropic-agents-containment-breach/): AI agent containment failure, Aug 2026
- [Two Days of Yen Buying, and Washington's Reported Return After 28 Years](https://sekahan0623.com/en/global-reactions-en/us-japan-yen-defense-2026/): Japan-US currency intervention, Aug 2026
- [Japan's Japanese Population Falls Below 120 Million](https://sekahan0623.com/en/global-reactions-en/japan-population-decline-below-120-million/): what is already fixed in Japan's demographics, Jul 2026
- [An 87-Year-Old Conjecture Fell to a Single Counterexample. Whose Job Is Discovery Now?](https://sekahan0623.com/en/global-reactions-en/jacobian-conjecture-falls-to-ai-counterexample/): AI and the Jacobian conjecture, Jul 2026

## 関連メディア

- [note（日本語・短縮版と月報）](https://note.com/sekahan_0623)
- [育児アトラス（姉妹メディア・海外の育児研究の解説）](https://ikuji-atlas.com/)
- [Sekahan: Japan Reacts（英語ニュースレター）](https://sekahanglobalbrief.substack.com/)

## 利用について

記事の引用時は出典として記事URLを明記してください。全記事は運営者の編集・確認を経て公開されています。