Physicist Reacts to The Most Dangerous Stuff in the Universe - Strange Stars Explained 

Kurz: "Neutron star is the densest stuff in the universe except for black holes" Dylan: "Obviously Kurz has never met my manager" 💀💀💀💀💀💀

okay first comment, but i have question. why do i never find someone simping for this man? he's so smart and looks super good 💀

Among all the scary things you can find out, I think what got me the more frightened is the concept of bubble nucleation (false vacuum decay). That’s probably the most dangerous and scary thing ever.

Been a fan of Kurzgesat for a few years now and I'm glad I stumbled upon your channel. Kurzgesat's got a lot of fun and fascinating videos, but it's nice to actually have someone who can go a bit deeper on some of the subjects and explain them a bit more. As Kurzgesat said themselves in this video: there's a lot of things to gloss over. And to be fair that's what "In A Nutshell" means: a simplified explanation. So I like being able to listen to someone knowledgeable go a bit more in depth on the things discussed in the videos.

In light of this video the Neutron Star video by Kurzgesagt might be worth a watch. Love your content!

"Obviously Kurzgesagt has never met my manager " broooo i woke the whole household up at 6:44am by laughing so hard , to early for such burns .

Hello, from India. I recently started to watch your content. Its so good that i watched a lot of your content going back an year i guess. I am also subbed to Kurzgesat for a long time, you adding to his content and explaining things deeper is really good. I enjoy a lot watching your videos. Thank you for your content.

QAL is actually brilliant, feels so straight to the point no bullshit. Great stuff

Mr.Frundles is the name of the creature from Rick and Morty you were referring too

Interesting. Learning something new everyday. Love the video and information

How about phase transition? I think phase transition is the most dangerous thing. That is, a spontaneous formation of a bubble in space, within which the laws of physics are different than the rest of the universe (because what we call a normal state of space or spacetime, might actually not be the most stable quantum vacuum state and space somewhere might spontaneously transition to a more stable state). Once formed, this bubble will start expanding with the speed of light, transforming every part of space that its surface passes through, including matter and energy in it, into space with different laws of physics and thus changing any material structure there into something irrecognizable. We could never see it coming, no matter how close it is, because its front will be moving at the speed of light and would hit us before we receive any information about it...

Definitely makes me want to see your take on their false vacuum video.

Hey Dylan, once you're done reacting to Kurzgesagt, you might want to check out the "Life Beyond" series by Melodysheep. It, in my opinion, is the best RU-vid can offer.

What about vacuum decay near our galaxy resulting from the collapse of the Higgs Field?

for the most dangerous stuff in the universe i was expecting something like antimatter but naked singularities didn't even know something like that existed. Good to know now :D

Needed to comment right after the joke at the start :D actually made me laugh.

I never heard of a naked singularity but it sounds really cool and maybe it could be used in a movie someday haha

I'd be willing to say that vacuum decays are more dangerous, if they exist of course.

Better camera let's gooo!

My list of cosmic horrors goes like: 1-false vaccum 2-strangelets 3- gamma ray burst or naked singularity, because they are kind of predictable... the first two u can't even prepare for them, it's just instant death

You should watch more PBS Space Time. I like the more in depth videos of theirs.

so... basically that thing inside me make me small but also give me superpower? sign me in dude B)

Neutron Stars are by far My fav Celestial Bodies!

Naked Singularity or False Vacuum? which would be worse?

i call that camera angle the " chadangle " said like Cha-Dangle

RE : The Rick and Morty reference. You were thinking of Mr. Frundles. That cute boogums as Jerry called it,.....that was basically just a personification of a Strange matter particle.

If an exposed singularity would still have infinite mass doesn't that mean that it's gravitational pull would be infinitely strong and pull literally everything at the same strength? Just some thoghts

when i look the channel i find so funny that the first 8 videos have in the miniature exatcly the same face xD and the facial expression is strange too XD

What's more dangerous Strange Matter or the human being that eventually figures out how to weaponize it. Example, cobalt 59 I am told is relatively safe except when you wrap it around a thermonuclear device. If I understand correctly in the milliseconds of the nuclear detonation the cobalt 59 is turned into Cobalt 60 which is incredibly Radioactive with a half life of about five and a half years. And no I didn't steal that from Doctor Strange love, that was Cobalt thorium G. Thanks and thumbs up.

Naked singularity must be completely invisible to us like dark mayter and energy or it doesn't exists cause something like that would be too flashy for our telescopes to miss right

It's the mass effect!

Biggest twist of the video is Dylan wearing pants XD

When I saw Mr. Frundles from the first episode of the most recent Rick and morty season I immediately thought of this RU-vid video. Edit: 7:35 this is exactly what I was talking about lol

When we calculate the mass of a galaxy? Do we have a way to measure the energy within the system as well as the matter, or mass? According to the theory of relativity, e=mc^2, energy in a system can affect the mass. Is it possible the loose energy in the system could account for the missing mass we credit to dark matter?

Perhaps singularities are the strange matter he's talking about. Perhaps singularities are made of strange matter. Granted I'm not a physicist, 100% layman, but still. It's a thought.

You should watch some Isaac Arthur videos

So, moral of the story, Naked Singularities are what you get when the simulation divides by zero, got it.

Could a naked singularity form when a black hole evaporates?

Mr Frundles.... bwahaha.

but what happens when 2 naked singularities collide?

what if a naked singularity could exist by spinning fast enough? After all, a spinning black hole in theory produces a ring singularity with the diametre of it being bigger the faster it spins.

Ya, naked singularities is hypothetically more dangerous than strange matter. My question is, is doctor strange a doctor made out of strange matter!? 🤭 jst kidding. Bt this man is really a physicist. He didn't talked about strange matter at all! We do that shit. We talk everything except the question at hand. 🤦🏻‍♀️ at least i did that on my last sem 🤧

15:43 😳😳

plot twist, humans are the most dangerous stuff in the universe

Mr. Grundles

Actually the densest thing that isn’t a black hole is my big brother

I know QAL VPN is working because my internet speed decrease a lot in a few websites.

If they are so contageous, then why don't they conbert the outside of neutron stars?

If a naked singularity exists wouldn't we be just... in it?

why is the thumbnail always the same? did i miss something?

Wtf this is one good looking physicist.

They did in Rick last part one right I mean basically the same thing happened.

13:40 I don't think that's right. It's a naked singularity because you can escape it at sub-light speeds, so light can escape and you can see it. They don't pull things in faster than light, because that would just be a normal black hole.

Do you think black holes caused the Big Bang from when black holes shrink and don’t exist anymore?

I'm Mr.Frundles.

Bro looks like the medic from tf2

From some of these thirst comments, Dylan… you’re gonna have to start a different channel 😂😉

Doesn't special relativity forbid infinite densities? And isn't it the case that general relativity cannot defy rules special relativity outlines? Therefore a singularity cannot be infinitely dense, therefore black holes as described, do not exist. As in, an infinitely dense point mass singularity with event horizon doesn't exist, because infinite densities can't exist.

who uses a supercomputer to hack someone an overkill sussy website

When he’s cute and very knowledgeable-

cosmic censorship and naked singularity...is this some sort of astronomer sex joke?

13:38 The gravitational "pull" of regular singularities is infinitely strong as well, inside the event horizon. It wouldn't be any different for a naked singularity, they dont have "infinite gravity" any different than a normal BH. At that point all geodesics point towards the singularity which means there is no path you can take at any energy level that would allow you to move anywhere except closer to the singularity. Forwards, backwards, up and down lose all meaning as do forward or backwards in time since space and time get infinitely curved inside the horizon. 13:42 This too already happens with regular black holes. This limit is broken at the event horizon (of solar mass black holes). The reason is that space itself is flowing to the singularity at speeds greater than c. This is the second reason that not even light can escape black holes. All paths point to the singularit and space itself is moving faster than c. So no you dont need infinite energy to do that, just infinite density. How you miss this stuff as a phd candidate in astrophysics is beyond me

Dylan kinda cute though no homo

I have to say I am a bit disappointed by this video. I thought that you will delve deeper into mechanisms of converting normal matter to strange matter in core of neutron stars. What forces come into play (weak force or something else). Why this strange matter should be more stable than normal matter and so on. Tbh I didn't find out more than in Kurzgesagt video. Don't get me wrong, I like your channel very much, just this one was a little downer. If the title says "physicist reacts" I hope that there will be more physics involved.

I would say... women

OMG You're so beutiful