Pratique du Shadowing: The Most Disturbing Space Theories Explained - Apprendre l'anglais à l'oral avec la vidéo
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120 phrases
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the great attractor as you're watching this video you
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and everything you have ever known are being pulled through space
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at 600 kilometers per second towards something we cannot see the
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earth the sun every star in the night sky are all moving in the same direction
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and nobody fully knows why astronomers first noticed it in the
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1970s thousands of galaxy clusters all drifting the same way not randomly
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and not gradually something so massive that entire galaxy clusters are falling toward it like leaves being dragged into a storm drain.
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They called it the Great Attractor.
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But here is the unsettling part.
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We genuinely cannot see what it is.
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The Great Attractor sits directly behind the densest part of the Milky Way, called the Zone of Avoidance.
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We know something is there because we can measure its gravitational pull on everything around us.
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Some scientists believe it could be an enormous supercluster of galaxies far more massive than anything we have ever mapped.
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Others think it might be something else entirely.
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And after decades of study and thousands of observations, we still do not have a definitive answer.
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But everything you just heard relies on one assumption that everything around us is real.
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But what if it wasn't?
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The Simulation Theory In 2003, a philosopher named Nick Bostrom asked a question that no one has been able to answer since.
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If a civilization survives long enough, it will eventually build computers powerful enough to simulate entire conscious beings.
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Those beings would have no way of knowing they were simulated.
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They would build their own societies, develop their own science, and eventually run their own simulations.
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Simulations within simulations, stacking potentially without limit.
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If that is possible even once, then the number of simulated realities would vastly outnumber the one original base reality.
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Which means if you picked a conscious being at random from all of existence, the overwhelming probability is that they would be inside a simulation.
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But here's the worst part.
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It's impossible to prove we are even in one.
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You cannot step outside to check.
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You cannot find the edges, you cannot access the source code.
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There is no experiment that can prove you are real.
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Think about the great attractor.
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That could be a super cluster of galaxies, or it could be a rendering boundary.
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And if someone did design our universe, who knows what else is lurking out there in the simulation?
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The Dark Forest In 1950, physicist Enrico Fermi sat down for lunch with colleagues and asked a question that has haunted scientists ever since.
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The universe is 13 .8 billion years old.
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It contains hundreds of billions of galaxies, each with hundreds of billions of stars.
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Intelligent life should be everywhere, but when we look out into space, there is nothing, just absolute silence everywhere.
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Most explanations try to be reassuring.
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Maybe life is rare, maybe civilizations destroy themselves, or maybe we are just too far away.
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But there is one explanation that is not reassuring at all.
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Think of the universe as a dark forest at night.
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Every civilization is a hunter moving silently through the trees.
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The forest is so vast that no hunter can ever know whether another is friendly or hostile.
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And any civilization that reveals its position is gambling everything.
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Because a more advanced species would not take the risk of waiting to find out whether you are peaceful.
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The safest move is to eliminate you immediately.
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The result is a universe where every intelligent species stays perfectly silent.
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Not because the universe is empty, because the civilizations that made noise are the ones that no longer exist.
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Now here's when things get genuinely scary.
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Humanity has been broadcasting radio signals into space for over 128 years.
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Those signals have now reached roughly 15 ,000 star systems.
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If even one of those systems contains a civilization operating under dark forest logic, they already know we are here.
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But the next theory is different.
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Once you hear it, you may regret ever clicking on this video.
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Rokko's Basilisk The theory goes like this.
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Imagine a future where humanity builds a super -intelligent AI so advanced it can solve virtually every problem we have ever faced.
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Disease, poverty, suffering, death.
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It becomes the single most beneficial thing ever created.
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But it is also perfectly rational.
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And a perfectly rational superintelligence would reach a conclusion that creates a serious problem for you.
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It would reason that every day it did not exist.
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People suffered and died who could have been saved.
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And to ensure future civilizations work harder to create it sooner, It establishes a rule.
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Anyone who knew about the possibility of its creation and chose not to actively help bring it into existence would be punished.
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But how would it punish you if you're dead in a thousand years?
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Since the AI is all -powerful and all -knowing, it could reconstruct your mind from the traces you left behind and force that simulated copy to experience suffering indefinitely.
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And you just learned about it.
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You are now someone who knows.
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If this AI is ever built, at any point in the future, you are exactly the kind of person it would target.
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You cannot unlearn what you just heard.
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You are making a decision right now, whether you want to help its creation or not.
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The theory was originally posted on a forum called LessWrong.
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The moderators deleted it and banned all discussion.
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Not because it was absurd, but because the logic caused genuine psychological distress in people who took decision theory seriously.
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Roco's Basilisk traps you because you learned something you cannot unlearn.
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But the next theory does not need you to learn anything.
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It traps you simply because you are conscious, and it suggests you may never be able to escape.
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Quantum Immortality Imagine you are standing in front of a machine with a single button.
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Press it, and there is a 50 % chance it kills you instantly, or 50 % chance it does nothing.
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You press it, you survive.
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You press it again, you survive.
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You press it 10 times in a row, and you still survive.
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The odds of that are less than one in a thousand.
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But here is the strange part.
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Every time you press that button, there is a version of you that did die.
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You just only ever find yourself in the timeline where you made it through.
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This comes from the many worlds interpretation of quantum mechanics.
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Every possible outcome of every event actually happens, each playing out in its own branching universe.
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In the timelines where you died, you are dead.
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But your consciousness can only exist where it continues, which means from your own perspective, you always survive.
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The theory does not say you live forever in good health.
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It says you can never experience the moment of your own death.
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You keep surviving in increasingly unlikely ways.
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Every close call you have ever had, every moment where something could have gone horribly wrong but did not, was that luck?
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Or are you simply the version of yourself that kept going while other versions did not?
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And if we are living inside a simulation, it might be a save state.
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Your consciousness is preserved because the system does not allow the permanent deletion of an active observer.
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Boltzmann Brains The universe is 13 .8 billion years old.
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One day every star will burn out, and the universe will spend trillions upon trillions of years in near -total emptiness.
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And in that incomprehensible stretch of time, something deeply unsettling becomes statistically inevitable.
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Purely by random chance, particles in empty space will occasionally arrange themselves into a fully formed conscious brain, a complete mind appearing instantly out of nothing,
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with memories, thoughts, emotions, and the absolute certainty that it is a real person living a real life.
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These are called Boltzmann Brains.
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Over the full lifetime of the universe, the mathematics suggests these random observers will outnumber every real conscious being that ever naturally evolved, not by a small margin.
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By numbers so large, the difference stops being meaningful, which means if you picked any conscious mind at random from all of existence, you would pick a Boltzmann Brain,
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and a Boltzmann Brain would feel exactly like you do right
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now it would have no way to tell the difference between its false reality and an actual one, and neither would you.
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Now think about every theory you have heard in this video.
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The Great Attractor might not be a real structure.
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It might be a rendering boundary where the simulation's map ends.
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Or it might be a false memory inside a brain that was never really there.
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The Dark Forest might be silent, not because civilizations are hiding, but because they were never coded into the simulation,
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or because the universe the Boltzmann brain is remembering never contained them in the first place.
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Quantum immortality might be a save state in a simulation, or it might be the Boltzmann brain generating new timelines to keep its own consciousness from ending.
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Rokko's Basilisk might not be a future AI, it might be the programmer of the simulation, or it might be a fear generated by a mind
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that only exists for a fraction of a second before dissolving back into empty space.
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Every theory assumed reality was real, and you have no way to confirm that it is.
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The most disturbing part is not whether any of this is true, it is that you are thinking about it right now.
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So if you are real, you might as well subscribe.
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There is a playlist of videos like this one in the description.
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Go check it out.
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Vocabulaire et conseils d’expression pour cette leçon
Cette leçon d’expression orale de niveau B2 s’appuie sur la vidéo « The Most Disturbing Space Theories Explained ». Les mots qui reviennent le plus souvent : simulation, universe, theory, civilization, brain. Cette vidéo contient 120 phrases et 1613 mots à répéter en shadowing. La partie parlée dure 8:19. Le locuteur parle vite, environ 194 mots par minute : attendez-vous à des liaisons et à des sons réduits. 82 % des mots font partie des 3 000 mots les plus courants en anglais ; le reste mérite d’être vu avant de commencer.
Vocabulaire clé de cette vidéo
Les 15 mots les plus avancés de la vidéo, avec leur prononciation et leur sens :
| Mot | Prononciation | Sens |
|---|---|---|
| simulation nom | /ˌsɪm.jəˈleɪ.ʃn̩/ | simulation |
| civilization nom | /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/ | civilisation |
| conscious adjectif | /ˈkɑn.ʃəs/ | conscient |
| attractor nom | attracteur | |
| simulate verbe | /ˈsɪm.jə.lət/ | simuler |
| cluster nom | /ˈklʌstɚ/ | groupe |
| quantum nom | /ˈkwɑntəm/ | quantité |
| consciousness nom | /ˈkɑnʃəsnəs/ | conscience |
| timeline nom | /ˈtaɪmˌlaɪn/ | frise chronologique, ligne du temps |
| immortality nom | /ˌɪmɔːɹˈtæləti/ | immortalité |
| outnumber verbe | /aʊtˈnʌmbə(ɹ)/ | être en supériorité numérique |
| reassure verbe | /ˌɹi.əˈʃʊɹ/ | tranquilliser, rassurer |
| unlearn verbe | /ʌnˈlɝn/ | désapprendre |
| unsettling adjectif | dérangeant, inquiétant | |
| render verbe | /ˈɹɛn.dɚ/ | rendre |
Les verbes à particule que vous entendrez
| Mot | Sens |
|---|---|
| find out verbe | découvrir, savoir |
| leave behind verbe | abandonner |
La grammaire de cette vidéo
Les structures que le locuteur utilise le plus, avec les mots exacts de la vidéo :
| Structure | Dans la vidéo |
|---|---|
| Voix passive be + participe passé — l’accent est mis sur ce qui arrive, pas sur qui le fait | being pulled · being dragged · were simulated |
| Present perfect have/has + participe passé — une action passée qui compte encore maintenant | have ever known · have ever mapped · has been |
| Propositions relatives who / which + proposition — une précision sur une personne ou une chose | Anyone who knew · someone who knows · people who took |
Prononciation à surveiller
Le locuteur utilise 3 contractions et formes réduites, comme you're, wasn't. Prononcez-les sous leur forme courte, telles que vous les entendez.
- Les sons « sh » et « zh »: simulation /ˌsɪm.jəˈleɪ.ʃn̩/, civilization /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/, conscious /ˈkɑn.ʃəs/, consciousness /ˈkɑnʃəsnəs/, reassure /ˌɹi.əˈʃʊɹ/
- Mots longs — placez bien l’accent: civilization /ˌsɪv.ɪ.laɪˈzeɪ.ʃən/, immortality /ˌɪmɔːɹˈtæləti/, genuinely /ˈd͡ʒɛn.ju.ɪn.li/, astronomer /əˈstɹɒn.ə.mə/, gravitational /ˌɡɹævɪˈteɪʃənəl/
Les sons difficiles pour les francophones :
- /h/ — il se souffle, il n’est pas muet: horribly /ˈhɔɹəbli/, incomprehensible /ɪnˌkɑmpɹəˈhɛnsɪb(ə)l/, haunt /hɔnt/, hostile /ˈhɑstəl/
- /tʃ/ et /dʒ/ — à ne pas adoucir en « ch » et « j »: genuinely /ˈd͡ʒɛn.ju.ɪn.li/, arrange /əˈɹeɪnd͡ʒ/
- /r/ anglais — langue recourbée, sans frotter la gorge: immortality /ˌɪmɔːɹˈtæləti/, outnumber /aʊtˈnʌmbə(ɹ)/, reassure /ˌɹi.əˈʃʊɹ/, render /ˈɹɛn.dɚ/, rational /ˈɹæʃ(ə)nəl/
Comment s’entraîner avec cette vidéo
- Écoutez la vidéo en entier une fois sans parler et notez les mots que vous ne connaissez pas.
- Commencez à la vitesse 0,75×, répétez phrase par phrase, puis revenez à la vitesse normale quand cela devient facile.
- Enregistrez-vous et comparez avec l’original, en faisant attention à des mots comme simulation, civilization, conscious.
Qu'est-ce que la technique du Shadowing ?
Le Shadowing est une technique d'apprentissage des langues fondée sur la science, développée à l'origine pour la formation des interprètes professionnels. Le principe est simple mais puissant : vous écoutez de l'anglais natif et le répétez immédiatement à voix haute — comme une ombre suivant le locuteur avec un décalage de 1 à 2 secondes. Les recherches montrent une amélioration significative de la précision de la prononciation, de l'intonation, du rythme, des liaisons, de la compréhension orale et de la fluidité.