쉐도잉 연습: How An Infinite Hotel Ran Out Of Room - YouTube로 영어 말하기 배우기

C1
쉐도잉 컨트롤
0% 완료 (0/70 문장)
- Imagine there's a hotel with infinite rooms.
⏸ 일시 정지
모든 문장
70 문장
1
- Imagine there's a hotel with infinite rooms.
2
They're numbered one, two, three, four, and so on forever.
3
This is the Hilbert Hotel and you are the manager.
4
Now it might seem like you could accommodate anyone who ever shows up, but there is a limit, a way to exceed even the infinity of rooms at the Hilbert Hotel.
5
To start let's say only one person is allowed in each room and all the rooms are full.
6
There are an infinite number of people, in an infinite number of rooms.
7
Then someone new shows up and they want a room, but all the rooms are occupied.
8
So what should you do?
9
Well, a lesser manager might turn them away, but you know about infinity.
10
So you get on the PA and you tell all the guests to move down a room.
11
So the person in room one moves to room two.
12
The one in room two moves to room three, and so on down the line.
13
And now you can put the new guest in room one.
14
If a bus shows up with a hundred people, you know exactly what to do just move everyone down a hundred rooms and put the new guests in their vacated rooms.
15
But now let's say a bus shows up that is infinitely long, and it's carrying infinitely many people.
16
You knew what to do with a finite number of people but what do you do with infinite people?
17
You think about it for a minute and then come up with a plan.
18
You tell each of your existing guests to move to the room with double their room number.
19
So the person in room one moves to room two, room two moves to room four, room three to room six and so on.
20
And now all of the odd numbered rooms are available.
21
And you know, there are an infinite number of odd numbers.
22
So you can give each person on the infinite bus, a unique, odd numbered room.
23
This hotel is really starting to feel like it can fit everybody.
24
And that's the beauty of infinity, it goes on forever.
25
And then all of a sudden more infinite buses show up, not just one or two, but an infinite number of infinite buses.
26
So, what can you do?
27
Well, you pull out an infinite spreadsheet of course.
28
You make a row for each bus, bus 1 bus 2 bus 3 and so on.
29
And a row at the top for all the people who are already in the hotel.
30
The columns are for the position each person occupies.
31
So you've got hotel room one, hotel room two, hotel room three, et cetera.
32
And then bus one seat one, bus one seat two, bus one seat three and so on.
33
So each person gets a unique identifier which is a combination of their vehicle and their position in it.
34
So how do you assign the rooms?
35
Well start in the top left corner and draw a line that zigzags back and forth across the spreadsheet, going over each unique ID exactly once.
36
Then imagine you pull on the opposite ends of this line, straightening it out.
37
So we've gone from an infinite by infinite grid, to a single infinite line.
38
It's then pretty simple just to line up each person on that line with a unique room in the hotel.
39
So everyone fits, no problem.
40
But now a big bus pulls up.
41
An infinite party bus with no seats.
42
Instead, everyone on board is identified by their unique name, which is kind of strange.
43
So their names all consist of only two letters, A and B But each name is infinitely long.
44
So someone is named A, B, B, A, A, A, A, A, A, A, A, A, and so on forever.
45
Someone else is named AB, AB, AB, AB, AB, et cetera.
46
On this bus, there's a person with every possible infinite sequence of these two letters.
47
Now, ABB, A, A, A, A, I'll call him Abba for short.
48
He comes into the hotel to arrange the rooms, but you tell him, "Sorry, there's no way we can fit all of you in the hotel." And he's like, "What do you mean?
49
"There's an infinite number of us "and you have an infinite number of rooms.
50
"Why won't this work?" So you show him.
51
you pull out your infinite spreadsheet again and start assigning rooms to people on the bus.
52
So you have room one, assign it to ABBA, and then room two to AB AB AB AB repeating.
53
And you keep going, putting a different string of As and Bs beside each room number.
54
"Now here's the problem," you tell ABBA, "let's say we have a complete infinite list.
55
"I can still write down the name of a person, "who doesn't yet have a room." The way you do it is you take the first letter of the first name and flip it from an A to a B.
56
Then take the second letter of the second name and flip it from a B to an A.
57
And you keep doing this all the way down the list.
58
And the name you write down is guaranteed to appear nowhere on that list.
59
Because it won't match the first letter of the first name, or the second letter of the second name, or the third letter of the third name.
60
It will be different from every name on the list, by at least one character.
61
The letter on the diagonal.
62
The number of rooms in the Hilbert Hotel is infinite, sure, but it is countably infinite.
63
Meaning there are as many rooms as there are positive integers one to infinity.
64
By contrast, the number of people on the bus is uncountably infinite.
65
If you try to match up each one with an integer, you will still have people leftover.
66
Some infinities are bigger than others.
67
So there's a limit to the people that you can fit, in the Hilbert Hotel.
68
This is mind blowing enough, but what's even crazier is that the discovery of different sized infinities, sparked a line of inquiry that led directly, to the invention of the device you're watching this on right now.
69
But that's a story for another time.
70
(upbeat music)
📱

Shadowing English

이제 모바일 기기에서 사용할 수 있습니다. 지금 다운로드하세요!

5.0
Download on theApp Store
GET IT ONGoogle Play

이 수업에 대한 설명

이번 수업에서는 "무한 호텔"의 개념을 통해 무한의 수학적 원리와 이론을 배우며, 영어 스피킹 능력을 향상시킬 수 있는 기회를 제공합니다. 참가자는 무한대의 공간을 관리하는 방법, 사람들을 어떻게 수용할 수 있는지를 고민하며 말을 하는 데 필요한 어휘와 표현을 연습합니다. 이 동영상은 shadowspeak 기술을 활용하여 참가자들이 어떻게 상황을 설명하고 논리적인 흐름을 유지할 수 있는지를 살펴보는 데 초점을 맞춥니다. 설명하는데 있어 적절한 어조와 속도를 유지하며, IELTS 스피킹 및 영어 회화 연습에 도움이 되는 유용한 팁을 공유합니다.

주요 어휘 및 구문

  • 무한 (infinity)
  • 호텔 (hotel)
  • 객실 (room)
  • 게스트 (guest)
  • 버스 (bus)
  • 이동하다 (move)
  • 고유 식별자 (unique identifier)
  • 무한한 대수 (infinitely many)

연습 팁

이번 동영상을 감상하면서 shadowing 기법을 적용하는 데 있어서 몇 가지 팁을 드리겠습니다. 동영상의 속도는 약간 빠를 수 있으므로 처음에는 슬로우 모드를 사용하여 음성을 반복해 보세요. 각 구절이 끝날 때마다 잠시 멈춰서 자신이 얼마나 잘 따라 했는지를 점검해 보는 것이 좋습니다. 주변에 있는 것들을 설명하는 방식으로 연습하면 shadowspeaks 의 효과를 높일 수 있습니다. 특히, IELTS 스피킹 시험을 준비하는 수험생에게는 이러한 연습이 실전 연습에 아주 유용합니다. 초반에는 간단한 구문부터 시작하고, 점차 복잡한 문장으로 넘어가면 됩니다. 또한, 동영상에서 말하는 사람의 억양과 생동감 있게 발화하는 접근 방식을 활용해 보세요. 이런 방식의 연습은 shadowspeak의 기초를 쌓는 데 큰 도움이 될 것입니다.

쉐도잉이란? 영어 실력을 빠르게 키우는 과학적 방법

쉐도잉(Shadowing)은 원래 전문 통역사 훈련을 위해 개발된 언어 학습 기법으로, 다언어 학자인 Dr. Alexander Arguelles에 의해 대중화된 방법입니다. 핵심 원리는 간단하지만 매우 강력합니다: 원어민의 영어를 들으면서 1~2초의 짧은 지연으로 즉시 소리 내어 따라 말하는 것——마치 '그림자(shadow)'처럼 화자를 따라가는 것입니다. 문법 공부나 수동적인 청취와 달리, 쉐도잉은 뇌와 입 근육이 동시에 실시간으로 영어를 처리하고 재현하도록 훈련합니다. 연구에 따르면 이 방법은 발음 정확도, 억양, 리듬, 연음, 청취력, 말하기 유창성을 크게 향상시킵니다. IELTS 스피킹 준비와 자연스러운 영어 소통을 원하는 분들에게 특히 효과적입니다.

☕ 커피 한 잔 사주기