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如果所有的人都住在同一个城市会发生什么? – 译学馆
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如果所有的人都住在同一个城市会发生什么?

What if Everyone Lived in Just One City?

截止到2016年3月 世界上现有的人口数量
As of March 2016, the number of humans alive in the world
是74亿
is at $7.4 billion people.
但是如果我们中每一个人 每个正在观看
But what if every single last one of us, everybody watching
这个视频的人 包括你 所有人都一同生活在
this video, including you, all lived together
同一座城市里会怎么样呢?
in the same city?
这座城市看起来多大或多小呢?
How big or small would this city look like?
还有我们将必须多么紧密地生活在一起呢?
And how close together would we all have to live?
先暂停并思考一下
Let’s pause and think for a moment about where we all
我们所有人正在居住的地方
currently live.
我们中有60%的人居住在亚洲 16%居住在非洲
60% of us live in Asia, while 16% live in Africa,
10%在欧洲 8%在北美洲 5.5%在南美洲
10% in Europe, 8% in North America, 5.5% in South America,
只有0.5%居住在澳大利亚和大洋洲
just 0.5% in Australia and Oceania, and too little people
居住在南极洲的人太少了以至于难以统计
to even register on the scale in Antarctica.
首先 我们不得不在 把世界上所有人
So first off, we would have to agree on which continent,
迁移到哪个洲或哪个岛屿这个问题上 统一意见
or island, we would migrate everybody in the world to.
当前生活在世界上的50.5%的人口生活在城市里
50.5% of everybody in the world currently lives in a city,
因此我们不得不说服另外49.5%的人
so we would have to convince the other 49.5% of people
来加入到我们之中
to come and join us.
所以现在假设我们都聚集在
So now assuming that we have gathered everybody together
同一个地方一起建设我们的城市
in the same place to create our city,
来看一些真实生活中的例子
let’s look at some real life examples
去看看如果我们如此密集地在一起生活
to see what living so close together
实际情况可能是怎样的
might actually look like.
新加坡是当今世界人口
Singapore is the most densely populated country in the world
最密集的国家
right now.
有539.9万人生活在这个国土面积
Five million 399,000 people live in the small country
仅有710平方千米的国家
of just 710 square kilometers.
这意味着 这个国家每平方千米的土地上
That means that, for every square kilometer in size
平均生活着
within the country, there are 7,605 people living out
7065人
their lives on average.
但是新加坡是一个城市大小的国家
But Singapore is a country the size of a city,
而且现在世界上早已有比新加坡人口更密集
and there are much more densely populated cities than that
的城市了
already in the world.
作为参考 纽约的市中心曼哈顿区
For reference, downtown Manhattan in New York City
有每平方千米26939人的
has a population density of 26,939 people
人口密度
every square kilometer.
那里的人口密度真的很大
That’s a lot of people very close together,
而且我们只能看到表面现象
but we’re just scratching the surface.
现在世界上人口最密集的城市是
The densest city in the world right
位于菲律宾的马尼拉
now is Manila, in the Philippines,
你会发现那里每平方千米有41515人
where you will find 41,515 people every square kilometer.
但马尼拉的人口总数相对较低
But Manila’s total population is relatively low,
只有178000人
at just 1,780,000 people.
这里的人口密度如此之高
The density of people is just so high
是因为他们都生活在一块很小的地方
because they all live together in such a small space.
世界上人口最集中的
The biggest concentration of people
地方
in one place anywhere in the world
位于日本的东京大都市
can be found here in Japan, the Tokyo metro area, home
居住着36923000人
to 36,923,000 people.
为了从更深入的角度来看东京是多么庞大
To put into perspective just how enormous Tokyo is,
我将向你们展示两个例子
I’m going to show you two examples
来阐明这一观点
to illustrate the point.
首先 这是一幅地图英国
First, this is an image of the United Kingdom
其中大伦敦地区
with the area of the greater London
被用红色标记了出来
metro highlighted in red.
如果你认为那看起来很大
And if you think that looks big, this
那这块蓝色区域是大东京都地区
is the greater Tokyo metro area highlighted in blue.
这真的很庞大
It’s truly gargantuan.
但是在第二个例子中
But onto the second example.
这是一张东京市中心区的图片
This is an image taken of downtown Tokyo.
但是如果我们进一步把它缩小到这里
But if we zoomed out further to here,
那么市中心的准确位置
then the exact location of downtown
就变得很难被发现了
grows much harder to find.
现在换一张新的照片
Let’s trade out this photo for a new one,
这张照片展示了从空中看到的东京真正的大小
which shows the true size of Tokyo as seen from the sky.
你正在看的这张照片里
In this one photo that you’re looking at,
居住着几乎和澳大利亚
lives nearly the same population as all of Australia,
新西兰 和大洋洲总人口数相同的居民
New Zealand, and Oceania combined, or about 0.5%
或者说相当于约0.5%世界上的人口居住在一个城市里
of everybody in the world, all in one city.
但我们仍然有95.5%的人口
But we still have the other 95.5% of the human population
需要考虑
to think about.
我们仍然可以把人们放在一个更小的地方
And we can still fit people into a much smaller space.
当今2016年 人口集中程度
Right now, in 2016, the highest concentration
最高的地方可能是印度的孟买
of people living in a smaller place than a city
那里的人们住在比城市更小的地方
is probably within the city of Mumbai, India.
这是城市中一个
Located within the city is a slum called
只有2.17平方千米叫做达哈维的贫民区
Dharavi, which is an area just 2.17 square kilometers in size.
如果我们考虑它的发现并把它和
If we think about that size and compare it
纽约市的中心公园相比
to Central Park in New York City,
达哈维贫民区仅占公园面积的64%
the Dharavi slum would only take up 64% of the same size,
甚至不足公园的2/3
or not even 2/3 of the area.
生活在那样一个狭小的空间里
And living in that cramped tiny space
或人口介于70万到100万的任何地方
or anywhere between 700,000 to 1 million people.
计算它们的平均数 我们可以得出每平方千米
Averaging out those numbers, we get 391,705 people
约有391705人
every square kilometer.
这个数字是当今世界上
Now this number here is the highest number
每平方千米
of people in the world today that
居住人口的最大值
live in a square kilometer.
在19世纪80年代
As recently as the 1980s, however, there
有一个地方不知道为什么会出现
was a place that was somehow even more frighteningly
一些幽闭恐惧症患者
claustrophobic.
历史上最著名的人口密集地是
The most densely populated place known in history
九龙城区
was the Kowloon Walled City, which
它位于中国香港
was located here in Hong Kong.
为了更好的了解我们将要
To get some kind of idea of what we’re
讨论的内容 来看这张图片
going to be talking about, this image
它是这座城市1987年的航拍图
is an aerial view of the city from 1987.
你可以通过观察
You can kind of get some scale of it
右边的篮球场
by looking at the basketball courts over here on the right,
或左边的卡车来判断它的实际规模
or the trucks over here on the left.
但是 包括这些建筑在内的总面积
But the overall total area of these buildings
只有0.26平方千米
is just 0.26 square kilometers.
换一种方式来想象一下
Another way to possibly imagine how tiny that really is
那里有多小
is this way.
这是三个并排的美国足球场
Here are three American football fields side by side.
九龙城只比它们三个球场放一起的
The Kowloon Walled City would be just a little
面积大一点
bigger than them put together.
而有33000人就居住在那块狭小的地方
And 33,000 people were living in that tiny space.
这也就意味着 如果我们把九龙城拓宽
Meaning that, if we stretched that out
到实打实的一平方千米
to a full square kilometer, the population density
人口将达到1200万人
would be 1.2 million people.
人们生活得就像这张图片一样紧密
Living that close together would look something like this image,
并且这个数字绝对是极限了
and this number is the absolute limit
我们在真实世界中能看到的
that we’ve ever seen in the real world of how many people
在这样一个小地方能居住的人口数决不能再多了
can live together in such a small area.
所以现在 根据我们一直在讨论的人口密度
So now let’s visualize how big our hypothetical global city
让我们设想一下 我们假象中的
would have to be according to the different population
地球村必须有多大
densities that we have been discussing.
首先 让我们来想像舒适一点的情况
First, let’s imagine something a little comfortable.
以美国路易斯安那州的新奥尔良市为例
Let’s take the city of New Orleans in Louisiana,
它的人口密度大约是
whose population density is about 784
784人每平方千米
people per square kilometer.
按那样的规模 我们地球村
On that scale our global city would
的大小和美洲大小
be about the same size as roughly the continental United
差不多
States.
如果我们搬到了这样密度的地方 德克萨斯州的奥斯汀
If we moved onto the density of say, Austin, Texas,
我们将会看到一个城市
we would be looking at a city that
大约有澳大利亚的大小 还有剩余空间
is about the size of Australia, with room left to spare.
但我们想要得到比那更小的空间
But we want to get even smaller than that.
所以接下来我们将要尝试把每个人都安放到
So we’re going to try fitting everybody into the same density
和芝加哥人口密度差不多的地方
as Chicago next.
按照那样的规模 我们的城市将和伊朗一样大
On that scale, our city would be about the same size as Iran.
让我们把地方再变小一点
But let’s get even smaller.
按照新加坡的人口密度 我们可以把全人类
At the density of Singapore, we could fit the entire human race
填入到美国的德克萨斯州 俄克拉荷马州和路易斯安那州
into just the states of Texas, Oklahoma, and Louisiana–
这已经比新奥尔良的人口密度
already considerably smaller than at the New Orleans
小得多了
density.
但是让我们再把地方变小一点
But we’re going to keep on getting even smaller.
如果参照曼哈顿的人口密度 我们将
At the density of Manhattan, we would
看到一个和厄瓜多尔差不多大的城市
be looking at a city about the size of Ecuador, here
这是在南美洲
in South America.
如果我们的城市和马尼拉一样大
And if we had a city with the same density we see in Manila,
那么世界上的每个人将会
then everybody in the world would
被安置到美国的密苏里州
fit inside the US state of Missouri.
按下面这么做 会出现越来越多幽闭恐惧症患者
But to get even more frightening and claustrophobic
如果我们的地球村有和孟买贫民区达哈维的一样的人口密度
our global city with the same density seen within the Dharavi
它的大小大约和新泽西相同
slum in Mumbai would be about the same size as New Jersey.
最终 在绝对的现实世界的限制下
And finally, at about the absolute real world limit,
如果我们建造一座和九龙城人口密度一样的
if we built our global city with the same population density
城市 我们就要把世界上的每个人
as Kowloon Walled City, we would fit every single person
都放到和巴勒斯坦相同大小的地区
in the world into an area about the same size as Palestine,
它本身只有东京面积大小的
which itself is only about half the size of the Tokyo metro
一半大
area.
把所有这些不同大小的尺寸
Let’s put all of these different sizes
放到一排来能最直观的展示
in a row to get possibly the best visualization.
首先 我们有一个和新奥尔良市人口密度相同的城市
First, we have a city with the same density of New Orleans,
接着是奥斯汀 芝加哥 新加坡 曼哈顿
followed by Austin, Chicago, Singapore, Manhattan,
马尼拉麻 达哈维贫民区 最后是
Manila, the Dharavi slum, and finally
九龙城
the Kowloon Walled City.
无论你看到它们中的哪一个
Whichever way you look at it, living together
世界上所有人同一个城市里会很怪异
in the same city would be both bizarre
而且地球上会空出大量闲置的空间
and leave an enormous amount of empty space left in the world.
希望你喜欢这个视频
I hope you enjoyed watching this video.
如果你喜欢 并且今后想看到
And if you did, and want to stay updated with videos just
更多新视频的话 希望你
like this in the future, I hope that you
可以点击这里来订阅我的频道
will consider subscribing to my channel
并给视频点赞哦
by clicking here and liking this video.
你也可以浏览其它的视频
You can check out some other videos
如果你对其他内容感兴趣
I’ve made over here on the left if you’re
可以看看我放在左边的这些视频
interested in additional content.
你还可以自由地在视频下方
And feel free to join the discussion about this video
的评论区参与讨论
in the comments below.
还是那句老话 感谢大家的观看
As always, everybody, thank you so much for watching,
我们两周以后再见喽
and we’ll see you all again in two more weeks.

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视频概述

如果地球上所有人都居住在一个城市会发生什么,参考一些世界上人口密度较大的城市,来看看假设出的地球村将会是什么样子。

听录译者

收集自网络

翻译译者

小尝

审核员

NL

视频来源

https://www.youtube.com/watch?v=r_iNRGac_uM

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