Prática de Shadowing: Traffic Has a Perfect Solution. Humans Are the Problem. - Aprenda a falar inglês com vídeo
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Stuck at an intersection, you always watch unfold the fundamental problem of traffic.
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On green, the first car accelerates, and then the next, and then the next, and then the next, and then you, only to catch the red.
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Had the cars accelerated simultaneously, you would have made it through.
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Coordination, not cars, is the problem, because we are monkey drivers with slow reaction times and short attention spans.
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Even if we tried, getting everyone to press the pedal on three, two, one, now would be challenging.
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This discoordination limits how many cars can get through an intersection, and when one backs up to the next, that's when city -sized gridlock cascades happen, taking forever to clear.
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In general, more intersections equals more discoordination, which equals more traffic.
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This is the motive behind big highways.
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No intersections.
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Splits and merges, yes.
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Intersections, no. No stopping, no coordination problems, no traffic.
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Well, that's the theory anyway.
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Intersections outside of a highway will back up onto it, again because human reaction times limit how many cars can escape the off -ramp when the light changes.
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But even without intersections, there would still be traffic on the highway.
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Traffic can just appear.
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Take a one -lane highway with happy cars flowing until a chicken crosses the road.
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The driver who sees it brakes a little, the driver behind him doesn't notice immediately and brakes a little harder than necessary, the driver behind him does the same until someone comes to a complete stop.
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And oh look, cars approaching at highway speeds must now stop as well.
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Though the chicken is long gone, it left a phantom intersection on the highway.
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This is what's happened
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when you're stuck in traffic for hours thinking there must be a deadly pile up ahead
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and then suddenly the traffic's over with no wreckage in sight.
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To your relief if you're a good person and mild annoyance if you aren't.
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You just pass through a phantom intersection, the cause of which is long gone.
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And this phantom intersection moves.
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It's really a traffic snake slithering down the road, eating oncoming cars at one end and pooping them out the other.
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On a ring road, a single car slowing down will start an aerobarous of traffic that will last forever, even though there's no problem with the road.
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If the drivers could coordinate to accelerate and separate simultaneously, easy driving would return, but they can't, so traffic eternal.
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On highways, traffic snakes grow if cars are eated faster than excreted, and they shrink if excreted faster than eated,
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dying when the last car accelerates away before the next car must stop.
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Now, in multi -lane highways, there needs be no chicken to start gridlock.
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A driver crossing lanes quickly with cars too close behind is enough to birth a traffic snake
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that lives for hours and leagues.
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It's this quick crossing that causes drivers behind to overbrake and begin a chain reaction.
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But we can make traffic snakes less likely by changing the way we drive.
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Your goal as a driver is to stay the same distance
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from the car ahead as from the car behind at all times.
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Tailgating is trouble, not just because it makes accidents more likely, but because you as the tailgater can start a traffic snake if the driver ahead breaks.
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Always in the middle.
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This gives you the most time to prevent overbraking, but also gives the driver behind you the most time as well.
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And when stuck in traffic, this rule would get all cars to pull apart the snake faster.
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That's the simple solution to traffic, getting humans to change their behavior, perhaps by sharing this video to show how and why traffic happens,
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why tailgaters are trouble, and how we can work together to make the roads better for all.
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The end.
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Except, yeah, wishing upon a star that people are better than they are is a terrible solution every time.
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Instead, what works is a structurally systematized solution, which is exactly what self -driving cars are.
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Self -driving cars can just be programmed to stay in the middle and accelerate simultaneously.
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They'll just do it.
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The more self -driving cars at an intersection, the more efficient the intersection gets a solid lane of self -driving cars vastly increases throughput.
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Hmm, actually, if you ban humans from the road, which we should totally do anyway, you can get rid of the intersection entirely.
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After all, a traffic light is just a tool for drivers on one road to communicate with drivers on another, poorly and coarsely.
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Red equals don't go now, we are coming through the intersection.
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Green equals good to go.
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But self -driving cars can talk to each other at the speed of light.
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With that kind of coordination, no traffic light necessary.
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Just as with a highway, the best intersection is no intersection.
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Humans will never drive this precisely.
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At the intersection, the fundamental problem with traffic that you watch unfold, as with everything, is people.
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So the real simple solution to traffic is no more monkeys driving cars.
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Vocabulário e dicas de fala para esta lição
Esta aula de conversação usa o vídeo “Traffic Has a Perfect Solution. Humans Are the Problem”. As palavras que mais se repetem: traffic, intersection, driver, highway, driving. Este vídeo tem 57 frases e 968 palavras para praticar shadowing. A fala dura 5:09. O falante fala rápido, cerca de 188 palavras por minuto, então espere sons ligados e reduzidos. 82% das palavras estão entre as 3.000 mais comuns do inglês; vale a pena estudar o restante antes de começar.
Vocabulário principal deste vídeo
15 palavras do vídeo que vale a pena aprender, com pronúncia e significado:
| Palavra | Pronúncia | Significado |
|---|---|---|
| intersection substantivo | /ˈɪntəɹˌsɛkʃən/ | nó |
| snake substantivo | /sneɪk/ | cobra, serpente |
| coordination substantivo | /kəʊˌɔːdɪˈneɪʃən/ | coordenação |
| accelerate verbo | /ɪkˈsɛl.əˌɹeɪt/ | acelerar |
| brake substantivo | /bɹeɪk/ | freio, travão |
| simultaneously advérbio | /ˌsaɪmlˈteɪnɪəsli/ | simultaneamente |
| phantom substantivo | /ˈfæntəm/ | fantasma |
| audio adjetivo | /ˈɔ.di.oʊ/ | auditivo |
| fundamental adjetivo | /ˌfʌn.dəˈmɛn.təl/ | fundamental |
| monkey substantivo | /ˈmʌŋki/ | macaco, símio |
| efficient adjetivo | /ɪˈfɪʃənt/ | eficiente |
| communicate verbo | /kəˈmjuːnɪkeɪt/ | comunicar |
| precisely advérbio | /pɹɪˈsaɪs.li/ | precisamente, justamente |
| endless adjetivo | /ˈɛndlɪs/ | infinito, infindável |
| deadly adjetivo | /ˈdɛdli/ | mortal, fatal |
Phrasal verbs que você vai ouvir
| Palavra | Significado |
|---|---|
| pile up verbo | amontoar, empilhar |
| slow down verbo | desacelerar |
Pronúncia para ficar de olho
O falante usa 7 contrações e formas reduzidas, como you're, aren't, can't. Diga-as na forma curta, do jeito que você ouve.
- Os sons de “th”: slither /ˈslɪðɚ/, throughput /ˈθɹuː.pʊt/
- Os sons de “sh” e “zh”: intersection /ˈɪntəɹˌsɛkʃən/, coordination /kəʊˌɔːdɪˈneɪʃən/, efficient /ɪˈfɪʃənt/
- Palavras longas — acerte a sílaba tônica: intersection /ˈɪntəɹˌsɛkʃən/, coordination /kəʊˌɔːdɪˈneɪʃən/, accelerate /ɪkˈsɛl.əˌɹeɪt/, simultaneously /ˌsaɪmlˈteɪnɪəsli/, fundamental /ˌfʌn.dəˈmɛn.təl/
Sons difíceis para falantes de português:
- Consoante final — sem acrescentar um “i” depois: snake /sneɪk/, accelerate /ɪkˈsɛl.əˌɹeɪt/, brake /bɹeɪk/, efficient /ɪˈfɪʃənt/, communicate /kəˈmjuːnɪkeɪt/
- /l/ final — a língua toca o céu da boca, não vira “u”: fundamental /ˌfʌn.dəˈmɛn.təl/, pile /paɪl/, pedal /ˈpɛdəl/, audible /ˈɔ.dɪ.bəl/
- s + consoante no início — sem um “i” antes: snake /sneɪk/, span /spæn/, slither /ˈslɪðɚ/
Como praticar com este vídeo
- Ouça o vídeo inteiro uma vez sem falar e anote as palavras que você não conhece.
- Comece na velocidade 0,75×, faça shadowing frase por frase e volte à velocidade normal quando ficar fácil.
- Grave a sua voz e compare com o original, prestando atenção a palavras como intersection, snake, coordination.
O que é a Técnica de Shadowing?
Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.