Name: 宇宙中最恐怖的地方？核能工程師觀看 Kurzgesagt (The Scariest Place in the Universe? - Nuclear Engineer Reacts to Kurzgesagt)
Uploaded: 2026-03-13T21:53:26.000Z
Duration: 18 min 46 s

Or zooming away from Earth at thousands of times the speed of light.

或是以數千倍光速的速度遠離地球。

所以假設有 faster than light tech。

Alright, it's time for some more kurzgesag.

好了，是時候來點 kurzgesag 了。

For those of you who don't know me, I'm Tyler Fulst.

如果你們不認識我的話，我是 Tyler Fulst。

I'm a nuclear engineer with a little over 10 years of experience in the commercial nuclear power industry.

我是一位核能工程師，在商業核能產業有十多年的經驗。

From engineering operations to emergency response.

I don't claim to know everything there is nuclear, but I can certainly share some knowledge.

我不敢說我什麼都懂，但我一定能分享一些知識。

讓我們來看看它們到底有多可怕。

The vast majority of the cosmos is voids.

Gigantic unfathomably large spaces of empty nothingness.

巨大、難以想像的 unfathomably large spaces，充滿著 empty nothingness。

Yeah, density figures out to about a hydrogen atom every few cubic meters compared to a densely packed nuclear reactor at thousands of kilograms per cubic meter, or at about 1 kg per cubic meter.

對，密度數據大約是每幾個立方公尺才有一個氫原子，跟密集堆積的核能反應爐每立方公尺幾千公斤，或大約 1 公斤/立方公尺相比。

So the universe in general is pretty empty.

所以，宇宙整體來說其實很空曠。

But the voids are that extreme end of emptiness.

但這些空洞就是 extreme end of emptiness。

Though it isn't exactly nothing, it's still something.

雖然不是完全什麼都沒有，但還是有東西的。

You still have dark matter, trace gas, radiation and quantum fields.

你還是會有暗物質、微量的氣體、輻射和量子場。

After all, even the best vacuum chambers that you design on Earth still have millions of particles per cubic centimeter.

畢竟，即使是我們在地球上設計的最好的真空腔，每立方公分還是有數百萬個粒子。

But these voids are going to be the largest low density regions that have been observed.

但這些空洞將會是觀測到密度最低的區域。

Bubbles of eternal light stretching hundreds of millions of light years.

Almost entirely devoid of galaxies, stars or light.

幾乎完全沒有星系、恆星或光線。

The Milky Way galaxy is only about 100,000 light years across, so this super void is thousands of times larger than that.

銀河系本身只有大約十萬光年寬，所以這個 super void 比它大上數千倍。

And galaxies itself are already fairly sparsely populated.

You could think theoretically fly through the entire galaxy without hitting anything, but

理論上，你可以飛越整個銀河系卻什麼都撞不到，但是

you still have some dark matter kind of acting as the scaffolding of the fabric of the universe.

你還是會有一些暗物質，像是宇宙結構的支架。

And galaxies form where that structure becomes dense.

而星系則形成在那結構密集的地方。

There's a whole lot about this sort of stuff that we just don't know.

關於這類事情，我們還有很多不知道的地方。

These voids are where the structure never accumulated enough mass to collapse into galaxies.

這些空洞就是結構從未累積足夠質量來形成星系的地方。

Voids are not just the absence of stuff, but weird worlds of darkness that are growing.

空洞不只是物質的缺乏，而是正在成長的奇異黑暗世界。

Similar to plasma physics or fluid instability, when density variations exist, they have a tendency to grow over time.

這跟電漿物理或流體不穩定性有點像，當密度出現差異時，它們會隨著時間增長。

So you end up with something that looks kind of foamy or bubbly, or this cosmic sponge, dark sponge here that you see right here in their illustration.

所以最後你會得到一些看起來有點保麗龍狀或氣泡狀的東西，或是這個宇宙海綿，就像他們插畫裡看到的黑色海綿。

Drifting, colliding and merging with each other.

Inside them, space itself is stretched violently and it's almost impossible to enter.

在它們裡面，空間本身被劇烈拉伸，幾乎不可能進入。

So it's about matter flowing outward to denser regions and cosmic Expansion is gonna be a little faster in low density regions.

所以這是關於物質流向密度較高的區域，而在低密度區域，宇宙膨脹會稍微快一點。

Kind of like air bubbles rising in water.

The density gradient is driving motion now.

There's nothing really stopping you from any them over time.

基本上沒什麼能阻止你隨時間抵達任何一個。

Point a spacecraft at them, you'll get there eventually.

指著一艘太空梭過去，你最終會到的。

But there's nothing really remarkable worth visiting there.

但那裡沒有什麼特別值得去參觀的。

或許這就是他們想表達的意思。

這更多是關於「為什麼」，而不是「你不能」。

But provided you could leave your galaxy and expend that much energy to do so, that energy cost is larger than anything that the void would do to stop you from going there.

但前提是你能離開你的星系，並且花費那麼多能量去做這件事，那能量成本會比任何虛空阻止你去那裡的行為都還要大。

Voids are weird and scary, but they sculpt the entire universe and may ultimately decide its fate.

虛空很奇怪也很嚇人，但它們塑造了整個宇宙，並且最終可能決定它的命運。

Kind of like astrophysicists referring to it as the cosmic web, where you got filaments, sheets, clusters, bubbles.

這有點像天體物理學家稱之為宇宙網，裡面有細絲、薄片、星系團、泡泡。

Those voids take up a lot of that volume and push it into clusters.

這些虛空佔據了大部分體積，並將其推擠成星系團。

Today we know of over 8,000 voids and supervoids, and we keep discovering more.

今天我們已知有超過 8,000 個虛空和超虛空，而且我們還在不斷發現更多。

No matter how large a cluster or supercluster of galaxies gets, there always seems to be an even larger void nearby.

無論星系團或超星系團有多大，附近似乎總是有一個更大的虛空。

Kind of like a fractal system where patterns repeat at multiple scales.

這有點像一個分形系統，模式在多個尺度上重複出現。

I mean, no, this isn't going to be a perfect fractal, but certainly a resemblance.

我的意思是，不，這不會是一個完美的分形，但確實有相似之處。

Jump off the cosmic cliff and drop into the heart of cosmic nothingness, the loneliest place in the universe.

跳下宇宙懸崖，墜入宇宙虛無的中心，宇宙中最孤獨的地方。

You're zooming away from Earth at thousands of times the speed of light, leaving our.

你正以數千倍光速離開地球，離開我們的。

Okay, so assuming faster than light tech.

好的，假設有 faster than light tech。

Otherwise it would take too long to explain there.

But yeah, unfortunately, we haven't found out a way to go faster than the speed of light.

但沒錯，很可惜，我們還沒找到超光速的方法。

Special relativity gets you every time, doesn't our solar system and our solar neighborhood behind now we see the entire Milky way with its 200 billion stars and dozens of dwarf galaxies zipping around it.

狹義相對論總是讓你措手不及，我們的太陽系和太陽系鄰近區域現在已經在後面了，我們看到整個銀河系，有兩千億顆恆星和幾十個矮星系圍繞著它快速移動。

And each star is a massive nuclear fusion reactor with enormous energy output, planetary systems, raw materials, which just shows you the sheer resource potential of galaxies.

而每顆恆星都是一個巨大的核融合反應爐，輸出巨大的能量，擁有行星系統、原材料，這就顯示了星系的巨大資源潛力。

Of course, in this video, if we have technology capable of going faster than light this quickly, going, leaving our galaxy behind, going that much faster than the speed of light.

當然，在這個影片中，如果我們有能力超光速前進，這麼快地離開我們的銀河系，比光速快那麼多。

Yeah, we're probably beyond these material resources at this point.

是啊，到時候我們大概已經超越這些物質資源了。

Probably a Kardashev Type 3 civilization is the assumption in this video.

這部影片的假設大概是卡爾達肖夫等級三的文明。

Two and a half million light years away on a collision course is giant Andromeda and its own swarm of satellite galaxies.

兩百五十萬光年外，正以碰撞軌道接近的是巨大的仙女座星系，以及它自己的衛星星系群。

We're now moving a million times faster than the Speed of light, seeing the Local group of over 50, if we went that fast, in a matter of seconds, we're going way over a million times faster than light.

我們現在的速度是光速的一百萬倍，在幾秒鐘內就能看到超過五十個星系群，如果我們速度這麼快，那比光速快一百萬倍以上。

A million times faster than light would still take you over a month to go from one side of the Milky Way to the other, because the Milky Way is 100,000 light years across, is woven together by gravity, rivers of gas and invisible scaffolds of dark matter.

比光速快一百萬倍，從銀河系的一端到另一端還是需要一個多月的時間，因為銀河系橫跨十萬光年，由引力、氣體流和暗物質的隱形結構交織而成。

What's interesting is this one is bound, this Local Group, meaning that cosmic expansion will not tear it apart.

有趣的是，這個本星系群是束縛在一起的，這意味著宇宙膨脹不會將它撕裂。

I guess we can think of it as being on the same scaffolding, the same universal structure that isn't going to expand away from each other.

我想我們可以把它想像成處在同一個鷹架上，一個不會互相擴張遠離的宇宙結構。

Okay, so they're getting at the accelerating expansion rate of the universe that distant galaxies will eventually become unreachable, even if you travel near light speed forever.

好的，他們在探討宇宙加速膨脹的速率，遠方的星系最終將變得遙不可及，即使你永遠以接近光速旅行。

But if you're traveling, traveling faster than light, this much faster than light, then yeah, sure, you can absolutely reach it.

但如果你在旅行，以超光速旅行，遠超光速，那當然，你絕對可以到達。

But again, we're talking hyper advanced type 3 civilization technology here, which is far beyond our horizon.

但我們說的是三級文明的超高科技，遠遠超出我們的視野。

So, yes, it would be as impossible as traveling faster than light for you, apparently, as we zoom away even faster.

所以，是的，對你來說，這會和超光速旅行一樣不可能，因為我們甚至以更快的速度遠離。

A colossal wall of more than 2,000 galaxies spread over roughly 100 million light years.

一個由兩千多個星系組成的巨大星系牆，橫跨約一億光年。

You're right on the edge of the cosmic cliff where the true deep darkness begins.

你正處在宇宙懸崖的邊緣，真正的深邃黑暗從這裡開始。

A gigantic empty bubble 200 million light years across.

一個橫跨兩億光年的巨大空泡。

So that's the adjacent structure to our galaxy group.

所以這就是我們星系群旁邊的結構。

It's one reason why our galaxy is apparently moving away from that section of the universe.

這也是為什麼我們的星系會明顯地遠離宇宙的那個區域。

That is to say, we're being gravitationally pulled to denser structures and away from emptier ones.

也就是說，我們正被引力拉向更密集的結構，遠離更空曠的區域。

If it was a bright thing and not absolute darkness, it would fill 40% of the night sky we see from Earth.

如果它是一個明亮的東西，而不是絕對的黑暗，它會佔據我們從地球看到的夜空的40%。

All around us are dozens of such superclusters and gigantic voids filled with suffocating emptiness.

我們四周都是數十個這樣的超星系團和巨大的空洞，充滿了令人窒息的空虛。

I appreciate the delivery, but no more suffocating than space.

我很感謝你的說明，但沒有比太空更令人窒息的了。

And space General traveling towards the greatest and emptiest nothing in existence.

並且太空將朝著存在中最巨大、最空虛的虛無前進。

Right into the center of the boot is supervoid, A cosmic desert around 300 million light years wide.

正好進入靴子中心的 supervoid，一個寬約三億光年的宇宙沙漠。

So gigantic it should contain thousands of galaxies.

它如此巨大，應該包含數千個星系。

但取而代之的是，你看到了什麼？