シャドーイング練習: OpenAI’s new browser feels familiar… - 動画で英語スピーキングを学ぶ

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Yesterday, OpenAI stepped into the web browser Thunderdome with the release of Atlas, their new AI-powered browser built around ChatGPT.
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And although I had anniversary plans, I imagine this is just how John Muir felt when he said, The comments are calling and I must go.
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The idea for Atlas is pretty simple.
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Fork Chromium and Vibe add ChatGPT into it as an assistant that can see, remember, and help with anything you need.
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Like, imagine you wanted to eat food.
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To do that, you'd usually have to go to the DoorDash app
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and go through the work of ordering it yourself like a prehistoric hunter-gatherer.
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But now with Atlas, you can just tell it exactly what you want to eat, and it'll do the work for you.
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Augustus Gloop himself couldn't have designed a better experience.
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Of course, Atlas is only available on Mac, but thankfully, my neighbor is an unemployed JavaScript developer, so I was able to borrow his to check it out.
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It is October 22nd, 2025, and you're watching The Code Report.
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As a believer of the free and open web, there's nothing I'd enjoy more than to hear
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that OpenAI pushed Codex to its limits and built a new engine and browser from scratch.
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But like almost all new browsers lately, Atlas is just a fork of Chromium, Google's free and open source web browser.
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According to the keynote, OpenAI didn't want it to just feel like Chrome with ChatGPT bolted on.
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And after playing with it for a little bit, I can confidently say that's exactly how it feels.
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Sam Altman even told me they completely reinvented the way a browser is used.
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But I think the reality is that they mostly just copied Perplexity Comet.
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Despite that, there are still some cool parts to it.
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Because it can see everything you do, it's able to use your browsing history as context when you ask it questions.
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Now, I know that sounds like a horrible violation of your privacy, but you are able to control what it remembers and delete certain memories if you need to.
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And as you saw earlier with the DoorDash order, agent mode lets ChatGPT take actions on your behalf.
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It does feel a bit like watching a disabled pirate try to use a mouse for the first time, but as I told my wife on our honeymoon, the experience improves with practice.
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But of course, agentic-powered browsers don't have the best track record when it comes to privacy or security.
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Earlier this year, a team at Brave was able to successfully orchestrate a prompt injection in Perplexity's Comet AI browser,
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by embedding malicious instructions inside of an image that would get triggered
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when a screenshot was taken of it and analyzed by the model.
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And that same team discovered that Fellow, which coins itself as the world's first agentic browser,
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was also vulnerable to a prompt injection simply by instructing the model to visit a website with the malicious instructions.
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Because your browser usually contains highly sensitive cookies and data, the team at Brave's ultimate takeaway was that indirect prompt injection is not an isolated issue,
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but a systemic challenge facing the entire category of AI-powered browsers.
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It was Benjamin Franklin who famously said, those who would give up essential liberty to purchase a little temporary safety deserve neither liberty nor safety.
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But old Benjamin Unbutton was always down for a good time, and I'm pretty sure even he'd be tempted to trade in his entire digital privacy
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and security for an easier way to order Taco Bell, like the new Flamin' Hot Colon Prolapser Grilled Cheese Burrito, available for a limited time at participating US Taco Bell locations.
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But if you want to avoid this temptation altogether, another browser that's being worked on is Ladybird.
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Unlike the others, it's fully independent
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and recreating both the engine and browser from scratch without using code from any other existing browser.
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It's an incredibly ambitious project, but they just recently passed the 90% threshold on web platform tests, which makes them eligible to be an alternative browser engine on iOS.
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But though Lady Bird doesn't have any AI aspirations, every developer and company out there is trying to build the next big AI product.
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But the hard truth is that your LLM is basically worthless without a good search engine, which is why you need to check out Melee Search, the sponsor of today's video.
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It's a restful search API that understands user intent and returns relevant results in milliseconds.
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That means your app's AI features actually feel intelligent, instead of the typical vague AI slot.
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The search is hybrid, semantic, and multimodal, which allows it to pull rich context from any data type and it has over 53,000 GitHub stars,
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with developers appreciating how you can drop it into any tech stack, then instantly scale up to millions of searches.
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Try out Melee Search Cloud for free for two months using the code Fireship at the link below.
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This has been The Code Report, thanks for watching, and I will see you in the next one.

この動画が英語スピーキング練習に最適な理由

この動画は日常的な会話に近いスピードと自然な語調が特徴で、英語シャドーイングの理想的な教材です。話者はジョークや比喩を交えながら情報を伝えるため、リズム感や抑揚の変化が豊かで、発音だけでなく会話の流れを理解するのにも役立ちます。特にIELTSスピーキング対策には、こうしたリアルな会話スタイルを模倣することで、 fluency(流暢さ)とcoherence(一貫性)を向上させることができます。

自然な表現を分解して学ぶ

  • 「I imagine this is just how John Muir felt when he said...」:比喩を使って自分の心情を表現する典型的な文で、「~のような気がする」という柔らかい表現が自然です。「imagine」や「just how」を使うことで、硬くならずに意見を伝えるテクニックが学べます。
  • 「It does feel a bit like watching a disabled pirate try to use a mouse...」:ユニークな比喩で「少し不器用な感じがする」と表現しています。「a bit like」を使うことで、否定的な評価をやわらげると同時に、イメージを鮮明にしています。
  • 「the experience improves with practice」:シンプルだが頻出するフレーズで、「練習すれば上手くなる」という意味を简洁に伝えます。「improves with」の使い方は日常会話でよく使われるので、覚えておくと便利です。

効果的なシャドーイング練習ルーティン

英語の発音を良くするための「repeat-and-record loop」を紹介します。まず動画を10秒ほど再生し、すぐに止めてその部分をそのまま真似て発音します(shadow speech)。その時の自分の声を録音し、元の音声と比較して、リズムや抑揚、発音の違いを確認します。特に「Augustus Gloop himself couldn't have designed...」のような速い部分は、繰り返し練習して口の筋肉を慣らしましょう。1日10分、1週間続けると、自然な発音と流暢さが格段に向上します。この方法はIELTSスピーキング対策だけでなく、日常会話の自信もつけることができます。

この動画の文法

話し手がよく使っている文型を、動画の実際の表現とともに紹介します。

文型動画での表現
受動態 be + 過去分詞 — 誰がするかより、何が起きるかに焦点を当てるwas taken · be tempted · being worked
関係詞節 who / which + 節 — 人や物について情報を加えるthose who would · tests, which makes · engine, which is

シャドーイングとは?英語上達に効果的な理由

シャドーイング(Shadowing)は、もともとプロの通訳者養成プログラムで開発された言語学習法で、多言語習得者として知られるDr. Alexander Arguelles によって広く普及されました。方法はシンプルですが非常に効果的:ネイティブスピーカーの英語を聞きながら、1〜2秒の遅延で声に出してすぐに繰り返す——まるで「影(shadow)」のように話者を追いかけます。文法ドリルや受動的なリスニングと異なり、シャドーイングは脳と口の筋肉が同時にリアルタイムで英語を処理・再現することを強制します。研究により、発音精度、抑揚、リズム、連音、リスニング力、そして会話の流暢さが大幅に向上することが確認されています。IELTSスピーキング対策や自然な英語コミュニケーションを目指す方に特におすすめです。

シャドーイングのやり方: ステップ別の完全ガイドを読む →