シャドーイング練習: The Algorithm Game (And Why We’re Not Really Playing) - YouTubeで英語スピーキングを学ぶ
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Attention!
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Attention!
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It's our most valuable resource.
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It's kind of all that we have.
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So why is it so hard not to constantly give it away?
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Hi, I'm Hank Green.
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I'm Sage.
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I'm Amanda Montel.
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I'm Kushan Alvidar.
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Hi, I'm Kirly Velasquez.
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I'm Che Jim.
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Okiniksokoeks.
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Nistunetanikupitaaki.
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Hi, I'm John Green.
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Hi, I'm Shanbudram.
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And this is Crash Course.
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Okay, so I think it's very important that you pay attention to this video.
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So we've got a plan.
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At random points, I'm going to flip a coin,
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and if it's heads, I get to eat a peanut M&M,
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and if it's tails, I get to eat a clove of garlic.
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What's really driving what we pay attention to?
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Is it the dreaded social media algorithm,
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the result of some evil genius design?
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Or is it human nature,
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that we are the ones who are simply hardwired for distraction and outrage and whatever this is?
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Social media platforms, including YouTube,
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are what's called complex systems,
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meaning behavior happens in non-linear ways,
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often unpredictably, and you can't fully understand it by looking at just individual components.
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Instead, you have to look at how those components interact.
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Oh my god, we're flipping a coin already.
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We're flipping a coin already.
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We got heads.
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The door is heads.
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Pin-a-dum-a-dum.
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When we talk about social media algorithms these days,
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we're mostly talking about content recommendation algorithms.
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That's how your various feeds get generated and constantly optimized based on your previous behavior.
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The thing is, there's so much more data on your implicit
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or knee-jerk unthinking behavior — like how long you lingered on a video,
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for example — than on your explicit or intended behavior — like clicking thumbs up or thumbs down.
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And that means that algorithms are plugged into our most underbaked lizard brain reactions,
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giving us more and more of that video you hate-watched in the moment and then felt gross about later,
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and less and less of what the best versions of ourselves actually want to see.
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And that in turn puts pressure on creators to optimize for things like outrage.
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I have an example of this.
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My brother recently made a video called We Know How to End Tuberculosis.
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And it was on track to be one of the Vlogbrothers' worst performing videos in recent history.
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Even though it is literally about the deadliest infectious disease of all time
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and the fact that we know how to cure it.
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So I changed the title of the video.
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I changed it to Elon Canceled This, Let's Do It Anyway.
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And it went from being our worst performing video of the month to the best performing video of the month,
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which was good for educating the world about tuberculosis,
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but also, I still felt kinda bad about it.
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So you see what I mean?
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It's hard not to give in to this pressure to change your story so it latches onto negative emotions.
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It's everywhere.
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It's how news is framed,
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it's in the scientific information we receive, and so much more.
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And algorithms aren't just amplifying outrage.
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Some studies have even shown
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that lies spread more quickly than true information on social media precisely because they seem novel or surprising.
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They capture our attention.
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Okay, there it is.
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They capture our attention.
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And thus I capture...
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I got another heads, everybody.
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I dropped it.
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I love this game.
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It's gonna be hilarious when I don't eat any garlic.
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But here's the thing.
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Over here at Crash Course,
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we're not really playing the algorithm game.
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I I mean, we will try to hook you with engaging titles and thumbnails and mead and garlic cloves, of course.
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But a video about mitosis is always going to be a video about mitosis.
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And what are we going to do,
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like, not teach you about mitosis?
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The people gotta know!
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At Crash Course, we're not choosing what stories to tell based on what's going to make the algorithm happy.
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We're choosing to teach what needs to be taught.
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In the last year, we wrapped up our series on religions and political theory,
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we released new ones on sex ed,
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Native American history, Latin American literature,
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kids' literature, futures of artificial intelligence, and scientific thinking.
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Science High Five!
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We're also continuing to experiment with longer form videos,
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the latest one featuring best-selling author Amanda Montel talking about linguistics and persuasion.
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Many of the topics we cover are under-taught and underfunded,
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subjects where teachers and students have limited access to high-quality resources,
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and they're subjects that many of us wish we were taught.
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I cannot tell you how many times I have heard from
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people decades out of school who were watching a series like
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Native American History trying to fill in the gaps in their education.
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And here's the amazing thing.
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We're not really playing the algorithm game.
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And yet, Crash Course was viewed 143 million times last year.
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Because people all over the world made the conscious choice to give us their attention.
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That is incredible, and we are so grateful.
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And we've got lots more in store for you.
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Geology, English language arts, a series that will answer big questions on US government and politics,
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more long-form lectures, and now that our content studio Complexly is a nonprofit,
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we belong to the public.
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And Crash Course is better poised than ever to keep making trustworthy content that is freely accessible.
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Another...
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Okay.
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Can I continue my streak?
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I cannot.
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I chose a small one.
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That's spicy!
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That's why we cook those.
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But listen, not playing the algorithm game comes at a cost.
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It is expensive to make high quality educational material,
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especially when you don't cater to the whims of the internet,
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though I admit I am kind of doing that right now.
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Not every Crash Course video is worked on by 20 plus human people who are absolutely devoted to quality and integrity.
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From subject matter experts to writers,
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editors, producers, animators, hosts, the list goes on.
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And that's why we need you.
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Each year, we produce a new Crash Course coin.
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And each coin that people like you purchase helps us reach thousands of learners.
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This year, the coin is inspired by our goal and commitment to being a signal in the noise.
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It shows a sound wave that for us represents our commitment to offering clarity, context, and meaning.
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And actually, this is the sound wave for the words knowledge weighs nothing,
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which is part of a phrase that we've printed on every Crash Course coin to date.
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Knowledge weighs nothing, carry all you can.
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These coins are beautiful objects minted in Arkansas from hand engraved dyes at Shire Post Mint,
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and they are only available for a limited time.
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Each coin represents your ability to help us reach thousands of learners.
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For example, every $100 coin helps us reach 2,000 learners,
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and every $500 coin helps us reach 10,000 learners.
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This year, we are also offering coins that help us reach 20,000 and 100,000 learners.
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And this is our sixth year of the Crash Course Coin and our first year as a nonprofit.
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It feels a little weird to say this,
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but some of you have asked for an even higher value coin,
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so we created a big hefty bronze coin that represents your ability to help us reach 200,000 learners.
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Oh, God.
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Is this the last one?
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it to tails.
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Oh, this is a chunker.
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Yes.
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Okay.
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Oh my God.
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It's getting so hot.
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I'm fine.
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I know that the conceit of this video is somewhat silly,
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but we are truly honored to do this work.
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I think of Crash Course as one of the most meaningful projects I have ever been a part of.
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Your purchase of the coin at any level allows us to create some of the best possible educational resources
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and make them accessible anytime, anywhere.
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We take that responsibility extremely seriously,
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so thank you for your attention and for your support.
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The 2026 Crash Course Coins are only available until May 29th.
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Go to crashcoursecoin.com now or check the link in the description and help us keep Crash Course free for everyone forever.
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For more
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information
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visit www.fema.org
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このレッスンについて
このレッスンでは、注意というリソースが私たちの行動にどのように影響を与えているかを探ります。特に、ソーシャルメディアのアルゴリズムが私たちの注意を引くためにどのように設計されているかがテーマです。この内容を通じて、リスニングとスピーキングのスキルを高め、英語の発音を良くするための理解を深めることができます。また、英語スピーキング練習やIELTS スピーキング対策にも役立つ情報が含まれています。
重要な語彙とフレーズ
- 注意 (Attention) - 私たちが持つ最も貴重なリソース。
- アルゴリズム (Algorithm) - ソーシャルメディアのコンテンツ推奨システム。
- 行動 (Behavior) - 私たちの反応や反応パターン。
- 人間の本性 (Human Nature) - 知覚的な反応の根本的な部分。
- コンテンツ推薦 (Content Recommendation) - ユーザーの行動に基づいて生成されるフィード。
- 不安や怒り (Outrage) - コンテンツに引かれる理由の一つ。
- ビデオ (Video) - 情報を伝える手段として使用されるプラットフォーム。
練習のコツ
このビデオのスピードとトーンに合わせて、shadowspeakを活用することが重要です。まず、ビデオを何度も視聴し、話者の言葉を耳に馴染ませましょう。その後、最初はゆっくりと、次に少し速めに声を出して練習します。特に、感情を込めて話せるように、語尾を強調することに注意を向けてください。このプロセスを繰り返すことで、発音が改善され、英語スピーキング練習の質が向上します。また、場合によっては、発音が難しい箇所を特定し、何度も反復練習することで、自然な会話のリズムをつかむことができるでしょう。これにより、IELTS スピーキング対策においても自信を持って取り組めるようになります。
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。