When this very video has uploaded, I was on my way to give up studying physics. 6 years later, I'm proudly announcing that my thesis will be on the thermodynamics of dark energy. Cheers Space Time! You guys are partly to blame!

@Pao234_

2 жыл бұрын

Wow, that's pretty bold. So... How'd it go?

@pavel9652

2 жыл бұрын

I know next to nothing about thermodynamics and dark energy, not to mention thermodynamics of dark energy, but chances are his thesis has very high entropy ;)

@garethwillis

Жыл бұрын

Hmmm

@garethwillis

Жыл бұрын

How can you write a thesis on the thermodynamics of something that nobody knows the answers to?

@suruxstrawde8322

Жыл бұрын

@@garethwillis Humanity may have the edge of collective thought, but zeitgeists still hold back their sight lines. Looking for the impossible is conceptually the same as looking both forward and backward while searching for something. And we shouldn’t all be pointing in the same direction if we want to expect the unexpected.

I'm very, very impressed that you guys don't shy away from showing your audience the actual equations as well as taking the time to explain the specific values within them. Big props

@ophidahlia1464

Жыл бұрын

I'm 5 years late commenting here (this channel is best experienced from start to finish), but for anyone who likes how Matt explains the math in a way that is accessible to laypeople while keeping the hand-waving away to a minimum will probably also like Dr Don Lincoln (a particle physicist) who runs the Fermilab KZread channel. Don gets a little more into the math but he also spends more time taking you carefully through the equations. After I watch a topic on here I'll often go to find the same subject on Fermilab's channel, it can be very helpful to get two different styles of teaching on the same subject in the physics! I'd love to see them do a collab video sometime.

@SackbotNinja03

Ай бұрын

Many other KZreadrs also do this and they will always be the ones I watch because the other ones seem like “for dummies” type videos lmao. I need the deets

11:26 "Here's where intuition goes completely out the window." Way ahead of you. I feel like we were there at 0:00.

@AhmedAshraf-pd7mu

4 жыл бұрын

+1 HAHA

@grandpasrobots4692

3 жыл бұрын

you nailed it. thats where i knew he was full of crap

@LuisSierra42

3 жыл бұрын

@@grandpasrobots4692 Flat earther detected

"Inspire enough smart kids to be scientists instead of bankers and it is well worth it". That really hit home, I actually switched fields from Aerospace to Finance.

@michaelmeredith912

3 жыл бұрын

Lol, I’m a Banker 🤦🏻‍♂️😄

@theultimatereductionist7592

3 жыл бұрын

@@michaelmeredith912 You should be paid minimum wage or not at all, as a banker. In fact, you should be forced to pay for playing banker, the way college students are forced to pay for working and studying hard to better the world.

@colorpg152

2 жыл бұрын

@@michaelmeredith912 do you ever feel guilty?

@seditt5146

2 жыл бұрын

@@theultimatereductionist7592 You must smoke crack if you believe that nonsense you typed.

The pressure in my head is greater than the outside pressure...mind blown.

@shyamalaparthasarathy5616

2 жыл бұрын

How dld that. Much Matter weñt inside ?

@ibrarkhan9878

2 жыл бұрын

😂😂😂

@jscotthatcher380

2 жыл бұрын

they don't call it blood pressure for no reason. 😜

@georgeflitzer7160

2 жыл бұрын

Lol

@doctauglyd9861

2 жыл бұрын

Drill a hole in that beast

1.Negative-gravity effect of dark energy comes from negative pressure 2.Conservation of energy no longer applies in expanding universe Double-mind-blow Mindblowception

@prabhchahal4492

8 жыл бұрын

+TimmacTR how can conservation of energy not apply?? then fucking god could exist as well arghhh :///

@prabhchahal4492

8 жыл бұрын

+TimmacTR i dont get what this video wants to say by this comment

@TimmacTR

8 жыл бұрын

Prabh Chahal I don't understand your question?

@prabhchahal4492

8 жыл бұрын

+TimmacTR i want to ask how cant conservation of energy apply? Then you could produce infinite energy and the universe wont need to die

@prabhchahal4492

8 жыл бұрын

+TimmacTR conservation of energy is like the supreme law of fucking everything. How could it not hold true. Thats like god telling a theist that i dont exist

This video was perfect. I love going over the equations, since I always feel a huge hole when I'm told "Because Math", without at least seeing the math (And most of the time you guys do throw the equation in the background, which eases my mind). In this case it was perfect to bring it in, because the most advanced it ever got was "Negative * Negative = Positive". I'd be happy to see even more math sometime, at any level of ability.

@normanthornton9376

3 жыл бұрын

Nick, Their is no positive nor negative states of existence in the universe, their is only the comparative states of mass and forces.. A bar magnet has to us a positive and a negative pole. They repel each other and we give then our designations of positivity or negativity but actually they are equal in mass and magnetic field properties and as that law of physics applies which states that opposites attract and equals repel. Both ends of a bar magnet have the same mass and magnetic field force. It is we who choose to call one positive and the other negative

@MaryAnnNytowl

2 жыл бұрын

@@normanthornton9376 no, they're not just equal. They're equal *and opposite.* We know that because of the measurements we can do on each end, and how they interact with each other.

@normanthornton9376

2 жыл бұрын

@@MaryAnnNytowl How much time is in a cubic square mile of space M.A. Bittle or how much space is taken up by an hours worth of time ? Ergo they are not equal. Each is a measurement of a specific entity one being space and the other being of a durative of measurement of momentum. A man walking might cover a one mile distance in fifteen minutes, a man in a car can cover fifteen miles in that same fifteen minutes and one of our jets can cover a hundred fifty miles in that same fifteen minute span of time. You have three different distances, one mile, fifteen miles and a hundred fifty miles all in the same span of time. Where is the equality? Their is no such phenomena as SPACE-TIME. Einstein had to add a curvature to his theory about Mercury to make it work, but it doesn't work for any other Planetary body. In my mind any physicist who believes in space-time has wasted four years of college. I'll bet you also believe in a big bang and black holes Here is my email address NCTHORNTONJR@Gmail.com. If you want a real explanation of those events give me a shout out. .

@TransRoofKorean

2 жыл бұрын

@@normanthornton9376 lol

@TransRoofKorean

2 жыл бұрын

In all seriousness, just like Einstein thought of the cosmological constant as a placeholder for something we didn't yet understand, I think the same thing goes for dark energy and matter for that matter, as a way to help physicists sleep at night, to keep them from panicking when they realize that nineteen-twentieths of the universe they look in the general direction of and say "I see you" [a lie they tell themselves], "but I have no idea what you are" and then go back to experimenting with the one-twentieth they can actually interact with and measure (and half of those things we can't directly see, either, but only their interactions with other things -- I think Eric Weinstein *_might_* be the guy finally barking up the correct tree with his very-incomplete Geometric Unity, where he's essentially showing a third of our particles to be illusory). Speaking of Eric, he says that he immediately knows someone can't be taken seriously if they ever say "lol" -- fair enough, no one should take me seriously. But I had to "lol" at your implication that Einstein is the guy who wasted 4 years in college. I think that's an easy indicator of someone to not take seriously. We're still looking at the best explanation for the fabric of the stuff we're swimming around in, and it's pretty obvious from your conceit on a subject you barely understand that you aren't going to ever be adding anything to it.

I just realized that I wasn't subscribed to these guys yet. I wonder how that's possible. Subscribed now, before the universe collapses from the paradox.

@titaniumoverlord6522

5 жыл бұрын

That's very witty. Kudos my friend lol

@neonblack211

4 жыл бұрын

Thanks for reminding me

9:25 this whole video summarised in a couple seconds.

@alpsoysal3586

8 жыл бұрын

+mikeunleashed1 We demand a "Because Math!" shirt.

@Jep_productions

8 жыл бұрын

+mikeunleashed1 Pretty much everything to do with space and time summed up in a couple seconds lol

@ericvilas

8 жыл бұрын

+Alp Soysal Every video has an "I need this on a shirt" moment.

@ximecreature

8 жыл бұрын

+Eric Vilas maybe but a "because Math!" t-shirt would spare me much time

@DumA2034

8 жыл бұрын

Thank you, he wouldnt stop moving and making faces, it was bothering me...

this is THE BEST SHOW EVER!!! So well explained and not basic science, really cutting edge stuff. All new science since I finished doing this stuff in Uni. keep it up guys!

@Cythil

8 жыл бұрын

+Paul Budden Yeah I like how it tries not to dumb thing down and present false analogies just to give people a hint about what is going on. So many times have I heard people just misunderstand the Higg's mechanism and it all down to a lot of science shows just explaining it poorly.

@pernaboys

8 жыл бұрын

+Cythil yep, because there are real scientists behind this channel, most of other youtube channels are just bunch of guys who don't know what are they doing and making videos for money here with false information

@Yogii0000

8 жыл бұрын

+somebody cough ASAP science

@viermidebutura

8 жыл бұрын

+Paul Budden i like it because it doesn't dumb down the science

@PhilDrinkwaterUK

8 жыл бұрын

Totally agree. It's fantastic!

I keep coming back to this excellent video once and again each time I discuss gravity and dark energy. My mind seems to insist on forgetting the proper explanation: "because math"! Love it, very well explained.

These videos are addicting and I'm really saddened that math was taught so atrociously to me in school. They never taught us what math actually is and what it can describe the way he does.

@federicoesposito2943

4 жыл бұрын

To study general relativity it takes very advanced math, way beyond what you could teach to teenagers

@quinton1630

4 жыл бұрын

Federico Esposito We used to treat learning a second language the same way. Just sayin ;)

@tylersigi2965

3 жыл бұрын

@@federicoesposito2943 yet in school you are taught to memorize and hate math.

@grandpasrobots4692

3 жыл бұрын

dont worry. this bozos math is just a snow job. hes delusional

@pierfrancescopeperoni

3 жыл бұрын

School sucks. Math is awesome.

13:46 - People seem to forget that the money invested doesn't go to alpha-cen along with the craft.

@bizzee1

8 жыл бұрын

+rafagd Agreed. Also, since the person thinks that sending probes to Alpha-cen is frivolous, their general argument is that we shouldn't spend money on frivolous things until we cure cancer. Well, entertainment, fine-dining and fashion are frivolous, so I guess we should shut down entertainment industries, eat nothing but plain oatmeal and wear nothing but gray T's and sweat-pants until we cure cancer and all other causes of premature death? Of course if we do that, we'd all want to slit our throats and cancer would no longer be much of a problem anymore. You gotta have some fun in life or premature death is going to be preferable.

@pcuimac

8 жыл бұрын

People are dumb and know nothing. People don't know that money is created from nothing in banks.

@RajSingh-qc6lq

8 жыл бұрын

+pcuimac Money in and of itself is worthless yes, but that's not how money is used at all. Money represents a value of gold which can be considered the real currency. It's stupid as fuck to do it this way simply because or inflation in printing more money and such, but it's what we have.

@Klarid

8 жыл бұрын

+rafagd That's not even the real problem with their argument. They are horribly underestimating how difficult cancer is to cure. Throwing money at it speeds up research, yes, but there isn't a way to simply buy the cure.

@rafagd

8 жыл бұрын

Klarid That is also true.

It's interesting how far we've come. When I was a kid everyone was sure that expansion would slow and a big crunch would come. Now we know expansion is accelerating.

@manjsher3094

4 жыл бұрын

It's like weather, just wait it will change. Given a few more years and were gonna go back to the big crunch idea. Just a thought. Today coffee good for you tomorrow bad.

@avinashreji60

3 жыл бұрын

@@manjsher3094 that’s because you have zero understanding of how science works, it’s called progress. I know you hate it

@manjsher3094

3 жыл бұрын

@@avinashreji60 mental genius

@avinashreji60

3 жыл бұрын

@@manjsher3094 Yeah go ahead and deflect

@manjsher3094

3 жыл бұрын

@@avinashreji60 done

10:21 *Chucks small cubed volume of the universe off screen* *Countless trillions of sentient being die* "So guys, this Dark Energy stuff..."

@its5k806

3 жыл бұрын

Lol

@dashikibraxton5537

3 жыл бұрын

😂😂😂😂😂🤣😂🤣😂😂😂😂😂🤣😂🤣

@jackiewhitt4551

2 жыл бұрын

Does ultra-microscopic life really count :)

12:56 the subtitles say inaudible, but he says "Alpha Centauri"

@pyrexpat4130

5 жыл бұрын

Shit I'm glad u caught that what would we have done without you

I get very tired of people who complain about space exploration spending with arguments similar to: "We have social problem X, we must fix social problem X before doing special task Y! Anything else is immoral/wrong." This argument is like a parent telling their children, "Well, mom has diabetes, so we'll spend as much as we feel is necessary to make her happy, but we won't save for your college education." It is shortsighted and wrong. Humanity is a going-concern. We don't spend most of our life energy raising the next generation because the future isn't important. The future of humanity is *everything*. It is unfortunate that some people contract diseases and die. But there is no historical precedent for humanity ever being disease free. One might argue that humans actually live in symbiosis with disease and it could not be any other way. Human death from disease is unfortunate on an individual level, but from a species point of view, it is constructive, even a source of strength. Adopting a myopic view of human problems, expecting that human effort be spent to guarantee each individual get an equal shot at life is a waste of energy. If, on the other hand, humans spend their excess energy reaching for the stars... then we'll be doing something that we have no record of an intelligent species in the universe actually doing to this point. What's more important? attempting to make humanity perfect, it's home (earth) perfect, it's social systems perfect? Are those really more important than expending the knowledge and experience of the only self-aware beings known in the universe? Remember the quote... "Perfect is the enemy of the good." It's a no brainer. I may die of cancer. I may die of heart disease. I may die earlier than "my time" because of an unfortunate accident. But if I ever came back from the grave and saw fellow humans spending more time trying to prevent normal human deaths rather than pursuing their intellect, I would consider myself lucky to be dead.

@chrispyfrenchfries

8 жыл бұрын

+jeremyrainman Amen.

@adrin181

8 жыл бұрын

this is a great comment

@Cowh1470

8 жыл бұрын

Its my dream to lobby for additional federal funds for scientific research of any kind. I've got one year left in my masters program, I've always loved science but don't have the right brain for it. so I figure I should contribute the only way I can with the skills I have gotten.

@sidneypickering9060

8 жыл бұрын

go ahead

@MikiMaki76

8 жыл бұрын

+jeremyrainman I like science, we are a technological species, yet one cannot deny that, despite our vast scientific knowledge, the vast majority of people on earth still struggle every day for a living, and a lot of them starve. your opinion comes from the fact you are not among them.

How are we supposed to get to the bottom of something that has antigravitational properties? 😜

@pbsspacetime

8 жыл бұрын

+Halo girl Oh, that's clever. Revision: "Let's get to the top of this whole dark energy thing!"

@brettkriewaldt1657

8 жыл бұрын

+PBS Space Time dont you mean the boundary? Or even cooler; Event Horizon!!

@Psylent

8 жыл бұрын

+PBS Space Time Halo Girl deserves a shirt for that clever remark

@brocpage4204

7 жыл бұрын

Phenomenal.

@jabu1482

7 жыл бұрын

Is the force experienced in the first expansion of the universe related to theirs current expansion of the universe? In other words, is there a theory of dark matter that can describe more properties than just what is guessed at in today's cosmology?

the IQ of australia dropped somewhat when this guy left

@Mark-Ozi

4 жыл бұрын

Nah, went up

@hairohukosu433

4 жыл бұрын

@@Mark-Ozi try not to cut yourself with that edge

@Mark-Ozi

4 жыл бұрын

@@hairohukosu433 A bit to subtle for you was it?

@hairohukosu433

4 жыл бұрын

@@Mark-Ozi ok look Im very dumb and I have no idea what you wanted to say there so Ill just go on with my life, cheers

@Mark-Ozi

4 жыл бұрын

@@hairohukosu433 Good luck

probably one of the best short video explanation about this topic.

I wasn't worthy enough for understanding the secrets inside this video.

@LuisSierra42

3 жыл бұрын

Just have to repeat it over and over

@grandpasrobots4692

3 жыл бұрын

you are probably worthy. its hard to understand the convoluted logic of this idiotic negative energy fantasy. Its almost as ignorant as dark matter

@EKDupre

3 жыл бұрын

And you accept that notion, and display it online for a laugh? Too bad. Putting effort in to be engaged makes you less relatable and doesn't give you as many youtube likes, but knowledge is power as they say.

@SilverAlex92

3 жыл бұрын

@@EKDupre Sorry I don't completely understand your comment. I'm a computer engineer, only got a couple of courses on physics in college. Studying astrophysics is just a hobby for me because I like understanding the universe we live in. But sometimes, like in this video, I don't completely understand the notions being explained so I just wanted to make a funny joke about that. Tho to be fair no one really completely understand dark matter, so I'm okay with being ignorant on this particular subject

@LuisSierra42

3 жыл бұрын

@@SilverAlex92 Ignore the trolls bro, a lot of people who are not career physicists cannot understand this complex stuff by just watching one YT video

I don't know who I'm fooling here pretending I understand.

@sinfuleldian9826

8 жыл бұрын

Probably yourself

@plrrt

8 жыл бұрын

+Alfalfa Male feel ya. head just exploded. you're all invited to my funeral. :(

@carlw

8 жыл бұрын

Very simple AM. Simply stop pretending not to understand and allow yourself to start beginning to understand. Besides, if anyone has done at least hiss hook maths do physics and you just focus, it is understandable. Good luck on your mission should you choose to accept it.

@carlw

8 жыл бұрын

Also, and most importantly, if we don't have this then no land speeders. That's bad.

@alexbatoian5534

8 жыл бұрын

+Alfalfa Male watch it a few times and it will become clearer

I love these videos!!!! You make me feel smart without forcing me to actually learn anything.

Great explanation of negative pressure (in lens of an expanding universe).

@kosatochca

4 жыл бұрын

Isn't there is also a negative pressure in tree trunks? I heard something like this from Jared but I forgot what video it was

@markthebldr6834

4 жыл бұрын

Yes. I too, like how he explained the things.

@KibyNykraft

4 жыл бұрын

@@markthebldr6834 It looks like a popular magazine story that typically lowdegree graduates and the youngest scholars like ,without much pondering or skeptical evaluation . Make no mistake, the subject is exiting. A couple of questions : 1 What is expanding and how? If space is empty, it cannot expand. All of standard physics model theory as well as Bohr, Mickelson-Morley (Einstein "in a way") builds on a literally empty space with physical matter in it. If cosmos does expand like from or by a cosmic inflation/dark energy effect, space is however literally aetherial. There is more than just a small contradiction there. If space is literally empty, there is no expansion, only internal infinities of dynamics. Only special relativity ("SR"/"STR") and magnetism. Gravity and other forces ,energies are there anyways. 2 "Flattens out"? There is no evidence of that. Flattens out into what ? Relative to what? 😅 If space is a vacuum, fluctuative or not, what is outside of our universe? If it is however a UNIverse ,there is no possibility of that. If we have a local blob cosmos in a multiverse ,inflative or not, we have a local cosmos being an aether (a word from greek yritha, an expression in monad-pythagorean cosmology and geometry). 3 Did you read all the work of Miles Mathis? Do that . His name and dot com. 4 Any force pulling against an expansion from the inside of a universe , if einsteinian gravitational , pulls on the outer objects. Are we talking about expansion of baryonic matter movement or expansion of space, or both? How/why? Much of mainstream explanation now just looks like compromises . I guess it secures subsidies to make it look fancy.

@KibyNykraft

4 жыл бұрын

American melodrama style but some interesting points here : milesmathis.com/inflat.html

@KibyNykraft

4 жыл бұрын

As well as www.nevyns-lab.com/mathis/mirror/milesmathis.com/hubb.html

Awesome animations, how long does an episode take to make? You can see the hard work paying off in this episode

@SteveJobzz

8 жыл бұрын

+Shaggad Mannan At around 3:12 when he says "we need to go deeper" it appears in the Inception font! Clever but time consuming I'd suppose..

Thanks for sharing this information, but I think it is worth emphasizing that much of this is still highly speculative, and I think it is far too soon to conclude that energy is not conserved.

@pseudorandomly

8 жыл бұрын

+Physics Videos by Eugene Khutoryansky The point is that there is no requirement for conservation of energy in general relativity. You also have to ask yourself what conservation of energy means in a universe in which whole galaxies can and do go over the causal horizon.

@AlcyonEldara

8 жыл бұрын

+Pseudorandomly : yes, and Energy is basically defined as "that thing conserved" in classical physics. GR has a "energy-momentum" conservation law.

@realmetatron

8 жыл бұрын

+David Sbabo Yes, the Einstein field equations actually require energy-momentum conservation to be derived in the first place. Also, a flat universe like ours has zero total energy.

@AlcyonEldara

8 жыл бұрын

***** : when you cannot define the energy density of a gravitationnal field, talking about the energy of the Universe is a bit .... hard ;)

@realmetatron

8 жыл бұрын

David Sbabo We can do that just fine.

you said this is not just some mathematical trick. But that is exactly what it is. Throwing in a new variables into the equation doesn’t necessarily mean that you have a physical reality

Matt, This is the single most lucid and useful 15 minutes on Dark Energy that I've seen. You may well be the best Explainer of physics since Feynman!

If you fall into a black hole right now, that what is closer to the singularity, will fall faster that than what is further. However, space before and after you, is falling in with you. So from each General Relativistic perspective of "you", because there would be no inertial frame to orient yourself (you could see), it would seem, like you are standing still, with all matter in your personal observable universe expanding in all directions, in an accelerating manner, as all of "you" gets ripped to individual sub atomic particles. What if that has already happened, what if the Hubble Horizon is just our personal event horizon, as seen from the "inside", and Dark Energy, is just due to extreme tidal effects?

@CoalOres

8 жыл бұрын

deep shit man

@alejandroochoa559

8 жыл бұрын

+CoalOres Deeper than diamond? Could it be... BEDROCK?!

@cermoer

8 жыл бұрын

+Marcel Hattingh That correctly exact !

@Digitalneo1

8 жыл бұрын

+Marcel Hattingh I have this depressing theory about what happens when you reach the event horizon of a black-hole. Its possible that you are only experiencing spaghettification at the rate of the black-hole's evaporation; where it's mass is reducing, allowing time to flow more perceptibly to you. Keep in mind your perception would only begin after an immense duration of time has passed in the universe. The black-hole would be much later into its life-span. Its kind of a terrifying thought, because you would experience being pulled apart over eons, not seconds.

@BjornDov

8 жыл бұрын

+Marcel Hattingh I would love to see this answered in the next vid :) vote up guys )

All these concepts are easy to understand as long as you stay in the abstract world of math. Once you try to visualize or understand it intuitively it becomes very difficult as all physical analogies are incorrect. Our brains have evolved in a completely different sort of reality for millions of years. I am perfectly fine with negative pressure causing expansion as long as it makes sense mathematically.

@paskwawi2007

8 жыл бұрын

+Alexandre Andrianov Fallacy at best. Natue doesn't make what is possible in mathematics. Most people today believe in black holes, dark matter and dark energy with no proof whatsoever!! They can't even tell you what gravity is!! They are describing a effect.. that's it. Modern science is a joke.

@alexandreandrianov5970

8 жыл бұрын

Kinda ironic that you use the achievements of modern science to type this.

@paskwawi2007

8 жыл бұрын

Alexandre Andrianov Tesla invented all we use today. A man who was broken and stolen from. Your reply already tells me you are a defender of the status quo. Electric universe theory or ignorance. Ciao.

@U_F_N_M

8 жыл бұрын

+Alexandre Andrianov I am completely at peace with the knowledge that reality is generally unintuitive. Throughout history how many stupid things have humans done because they thought they had it all figured out?

@SkyAce200

8 жыл бұрын

+paskwawi2007 Tesla invented things, but not even a small fraction of what we use today. Satellites have in its programs a correction in its clocks to compensate the time difference due to what general relativity tell us about how time behaves... and thanks to satellites you can find the nearest McDonalds right now. Transistors are an achievement of quantum mechanics, basically the most abstract kind of physics out there, not even totally understood in a single theory... but thanks to quantum mechanics you are seating in front of your computer writing crap about modern science.

I love this channel. I gotta get some PBS over-the-air bcuz I'm really into radio. I tell ya...I hated math; I failed miserably. I remember I had such a hard time multiplying & dividing, adding & subtracting FRACTIONS. Okay? So then one day I'm sitting in Music Theory 101. Sitting there writing out accurate rhythms correctly on stave paper. And, then it hit me: what was I doing? Adding, subtracting, multiplying, dividing fractions. Music is math too. It's just based more on intuitive feelings instead of concrete rational ideas. Altho it's governed by math like everything else. SO I wish I would've done better at the basic level bcuz as I started learning about quantum physics...I LOVE IT. Always have.

Ok, this is the first video I understand... a quarter of. Finally!

Was a little bit awkward watching this video with a sister, who works in a bank, and hearing your last words about bankers lol

@alexandrugheorghe5610

8 жыл бұрын

+KONO career refresh

@garethdean6382

8 жыл бұрын

+KONO She's not used to it by now? KZread's pretty much universally against bankers.

@IlicSorrentino

8 жыл бұрын

Bankers sucks

@stylis666

8 жыл бұрын

+Ilic Sorrentino You're just jealous that the guy's sister finished highschool.

@konooleh

8 жыл бұрын

Gareth Dean Until recently she didn't even realise there are people in space lol. That's what banking do with your brains, I guess.

Up till now I have just been keeping my head above water. I am now lost.

@charlesdavis7087

8 жыл бұрын

+Mark Fudge No, you're not lost. These so-called theoretical physicists are lost. What they are talking about is theoretical stuff. "String theory," gravity waves, dark energy, dark matter, etc., etc. This is not physics. This is theory. The real problem in Einstein's great equation is in relationship to the equal sign ( = ). What Heisenburg was trying to say was that the observer is effecting the situation. ( what is = to what )? (Consciousness is effecting the equation.) In short, scientists have to seemingly leave out the hidden factor called 'consciousness'. Because they can't measure it or verify its actual existence; they simply leave it out of the equation. ( = ) Wrong! Consciousness proceeded light and it speed (Big Bang). Consciousness is the one omnipresent constant upon the whole of the universe. In the equation E = m c 2, "c 2" really should stand for the constant of Consciousness squared (matter). Consciousness is the cause of light and its speed, not the other way round. Not until they understand will they be able to move faster than the speed of light and be simultaneously present in multiple places (and times) at the same time. Thus: faster than light travel. At least, that's part of the way I see it. CVD

@woofydawg1

8 жыл бұрын

+Charles Davis Please learn what theory means, in a scientific sense

@armanghannadian1489

8 жыл бұрын

+Charles Davis atomic theory of matter: that things are made up of atoms is "theory" as well

@LouSaydus

8 жыл бұрын

the only difference from scientific theory and scientific law is time. They are both backed by good mathematics, experimentation and replicability. Scientific law has just had more time to ensure it is correct, or at least more accurate than most theory.

@alucardwhitehair

7 жыл бұрын

Actually, laws and theories are completely different areas of scientific understanding. Laws just state natural phenomenon while Theories explain or describe their mechanics. For example, we know without a doubt that cells and atoms exist but Atomic theory and Cell theory are still theories. The Teory is the highest level of scientific classification.

Oh wow, I knew that the pressure due to dark energy was minus the energy density. But I didn't really know why. Now that you explained why (by the fact that it requires energy to expand space), it made so much sense!

That ending. Overall, a wonderful video.

Wont it be awesome when we come back to these videos in the future and say "hahahaha how stupid were we, it was obvious all along that ______________ and that's why _________________ "

You can't leave us just like that! I'm going to write a physics exam tomorrow and the whole point of our study is the law of energy conservation - in order to handle the mass defect in nuclear physics for instance. And now you throw it away just like that! :O I can't deal with that!

@stevecrothers6585

6 жыл бұрын

General Relativity violates the usual conservation of energy and momentum for a closed system. It is therefore in conflict with experimental evidence on a fundamental basis. It is therefore false. Explanation is here: Crothers, S. J., ‘Flaws in Black Hole Theory and General Relativity’, for the Proceedings of the XXIXth International Workshop on High Energy Physics, Protvino, Russia, 26-28 June 2013, vixra.org/pdf/1308.0073v1.pdf and here: Crothers, S. J., General Relativity: In Acknowledgement Of Professor Gerardus ‘t Hooft, Nobel Laureate, 4 August, 2014, vixra.org/pdf/1409.0072v9.pdf

Sir your closing line is epic, I think you know that only a few will really understand BUT you have increased that number by at least one 🙏

I cant count how many people, physicist at that, have told me I am wrong regarding the Conservation of Energy not applying in a GR based Universe. I was quite happy to hear you mention this point...

@brian8507

Жыл бұрын

So ur saying that an accerating universe is conserving energy? How

Pizza and PBS Space Time, awesome evening in perspective.

@EllenRipley1979

8 жыл бұрын

+Slow Berry (SlowB) I know what you mean :D

@jasonzark96

8 жыл бұрын

I was supposed to eat my pizza while watching shield but this notification changed my plans

@nevertrusasmurf

8 жыл бұрын

+Slow Berry (SlowB) I'm eating pizza right now

@alexandrugheorghe5610

8 жыл бұрын

+nevertrusasmurf Just finished, at once with the video haha.

@ILikeEpicurus

8 жыл бұрын

Cannot wait until the last part in this awesome series and then have a SpaceTimeMarathon with more pizza!

wow ... smoked a blunt watched this and got my mind blown!!! I love this show!

@MjolnirR52

4 жыл бұрын

Dhruva Dev hahahahhaa same here brotha! :D

You are an excellent science teacher! Love the show!

happy i thought of this and found it here

When will the results of the challenge question be out? May not have participated, but am curious about the answer!

@TheStaticUnit

8 жыл бұрын

I think next week, he said we had two weeks (last week) to submit an answer

@pbsspacetime

8 жыл бұрын

+Aryan poonacha The challenge answer is going to be out in 2 weeks from now (three weeks total). We had a slight schedule change.

@phineasandferbrocks4

8 жыл бұрын

PBS Space Time Thanks, good to know!

@dantebroggi3734

8 жыл бұрын

+PBS Space Time How much energy is produced in the universe (by dark energy constant) in 1 second/year/milenium/time _t_?

@garethdean6382

8 жыл бұрын

+Dante Broggi You need to be more specific, the universe is a big place, and do you want the entire, possibly infinite universe? Its current density is 7 × 10−30 g/cm3 and the expansion it crates also small. Doing a rough back-of-the-envelope calculation I estimate the dark energy in a volume of space the size of our solar system would increase by the amount needed to boil a cup of water every few million years.

My only question is...huh?

@miek127

5 жыл бұрын

The answer is: 32

@brachechs4911

4 жыл бұрын

@@miek127 42*

@efini_fc4276

4 жыл бұрын

@@brachechs4911 yes, now it is, but not 4 months ago it wasn't. You are correct though.

@JayDillon-mm6yv

4 жыл бұрын

That's a metaquestion.

@alwaysflying6540

4 жыл бұрын

Yup

So fascinating! This helped me understand so much of my seeming paradoxes of the expansion of the universe.

The cosmological constant. I've fixed many chemistry experiments in high school by postulating that very thing, thus proving that whatever my results, they are explainable to be a perfectly correct answer, thus deserving of A+ grades on those experiments, even though my answers were wrong.

So perpetual motion devices are mathematically possible after all!! I always hated conservation of energy anyway Newton

@dylanwebb2

8 жыл бұрын

+Levi Howell Someone call Lisa Simpson!

@realmetatron

8 жыл бұрын

+Levi Howell No, a flat universe has zero total energy. This is well known in cosmology, so I think the statement in this video is incorrect.

@falleithani5411

8 жыл бұрын

+Levi Howell Technically yes, but only on truly massive scales in intergalactic space, and even in that context it may not be possible to harness that motion to perform any other kind of work. While we're still inside a galaxy, conservation of energy applies.

@falleithani5411

8 жыл бұрын

+Ilavenya I'm pretty sure that comes down to how one defines energy. But on an elementary level, galaxies are getting farther apart at faster and faster rates, despite continuously accelerating in the opposite direction via gravity. That is literally perpetual motion.

@realmetatron

8 жыл бұрын

Fal Leithani Energy is defined quite rigorously. The motion you speak of is not motion through spacetime, it is just the expansion of that which carries the galaxies with it. Still, the total energy of a flat universe is zero, because the positive energies of the matter, radiation and their gravitational energy density are equal to the negative dark energy.

Uhhhhhhhh...... the law of conservation of energy no longer applies?.... uhh... I don't like this... I don't change.... energy should stay the same, this makes be scared....

@GulfsideMinistries

7 жыл бұрын

One person's modus ponens is another's modus tollens.

@anSealgair

7 жыл бұрын

A key to understanding physics is to leave assumptions at the door. Let them go, bye bye assumptions....

@ragnkja

6 жыл бұрын

Red- and blue-shift of photons doesn't conserve energy either, and since distant objects tend to be redshifted, that means quite a lot of radiation energy is lost in the expansion of the Universe.

@IIIIIawesIIIII

6 жыл бұрын

Nillie But the energy is transforming into space, or time, or mass or order or not? I mean, information can not be forever lost, or created out of nothing, or can it? Because that sentence really shocked me as well... :P like "wtf, magic is real?!?!" Can you really turn nothing into something without at least creating a negative of itself that compensates for it? Is this whole existence just a malevolent pseudo-order with fake rules that are valid just whenever it wishes to? I mean, turning space into energy - sure, space is not nothing! But NOTHING? I'm seriously worried :0

@ragnkja

6 жыл бұрын

IIIIIawesIIIII I agree that it is a bit harder to accept the idea that energy can be created than that it can be lost, but apparently both are possible in our Universe if your system is large enough.

the answer to the last question in the last minute is gold ! great work !

Absolutely excellent video. Thank you.

You lost me once you started talking about relativistic pressure doing the opposite thing that regular pressure.does.

@pbsspacetime

8 жыл бұрын

+Kibrom Fesseha Yup, and you're not alone. This is one of the hardest concepts in cosmology to grasp intuitively, and may be impossible. That's why I say "because math", although by itself that's not good enough. We will need to rigorously test the predictions of the mathematics.

@kibromfesseha9960

8 жыл бұрын

PBS Space Time At the end of this video you said that Conservation of Energy doesn't apply...Do the other laws of Thermodynamics not apply either for some reason or does Dark Energy only make CoE not apply?

@nbartlett6538

8 жыл бұрын

+Warren Knox Probably the universe is infinite, so it's just expanding into itself. Like Hilbert's hotel: it has infinite occupied rooms but can still accommodate infinitely *more* guests, simply by moving each guest in room N into room 2N.

@2phalanges

8 жыл бұрын

into

@nts3208

7 жыл бұрын

It's simple, negative pressure means expansion because that pressure is constant throughout the universe, so there is no difference between any two regions of the universe. Thus, there is nowhere for that pressure to equalize to. The relativistic effects of that pressure though is shown through math to have an anti-gravity expansion effect. There is no simile or metaphor that is adequate to explain this. All you need to know is that it happens and the math shows it happens. I guess I didn't say anything new.. so just ignore me. Accepting it without the need of understanding is very tough, but that's your best bet.

And this is the reason why I want to be physicist!

"A negatively curved, hyperbolic, hyper-plane!" What a great combination of words...don't know what it means, but it is too awesome! PBS Space Time is uber-good!!

Says it's "really, really hard to describe intuitively and may not, in fact, be possible" that negative pressure results from a constant energy density, then proceeds to explain it in a completely understandable and intuitive way... good on you, PBS Spacetime!!

How are we supposed to get to the bottom of something that is flat ?

Inflation inspires me to become a banker.

@garethdean6382

8 жыл бұрын

+Skroot Science or finance, inflation gets you either way.

Amazingly explained! Keep it up

I'm so enjoying these videos! But you lost be when talking about particles pressure. As 80% of the mass is Dark matter and these particles do not interact like baryonic atoms that are repulsed from each other by electromagnetism, what means the speed and pressure of the particles???

Great video (and videos), It might even make the idea I've always had for this accelerating axpansion of the Universe seem even sillier than before. It's such a simple and seemingly obvious idea that I find it strange that I've never seen it mentioned or even just simply explained away before. Well here it is: Could the accelerating expansion of the Universe be due the unimaginably colossal expanse of nothingness beyond the limits of the Universe? So continually dragging the matter of the Universe into it like a vacuum cleaner? I thought I'd still better mention this even though I'm starting to appreciate more the ideas behind dark energy more after watching this video.

is the universe behaving its way "because math", or is math behaving its way "because universe". got me thinking

@monsterlair

8 жыл бұрын

+4798alexander4798 Math is a concept and does not "behave". So i guess "because universe" would be the least incorrect answer.

@sinfuleldian9826

8 жыл бұрын

I have a philosophy final exam next week, and teachers predicted this exact subject that possibly we'll be asked to write about. I'm thinking of it a long time ago, i think it's "because math," you see, the way Einstein predicted black holes, and gravity waves were purely "because of math," and gravity waves were recently discovered proving that Einstein, and more importantly, math, is once again correct, legitimate, solid, and pure evidence, and proof of how the universe work. It's always because of math, friend.

@pcuimac

8 жыл бұрын

Because universe is the correct answer. Math has been developed by brains that went through evolution. Our math fits the universe, because our brains addapted to reality (not D. Trumps). ;) There is no realm of ideas that exists independent of the universe. But there may be other universes we can't cross over into, connected only to us by theoretical models who explain ours.

@garethdean6382

8 жыл бұрын

+4798alexander4798 Well we can easily math ourselves up stuff that doesn't exist in the universe, so I'm guessing math is in charge here.

@pcuimac

8 жыл бұрын

+Gareth Dean What does "in charge" mean? Does a universe come into existence, because you bring up some math that describes it? I guess not. ;)

kinda happy that i understood this

I love this show. Never had an interest in physics at school but now I’d love to be an engineer or a astrophysicist and use and expand this knowledge somehow. Thank you! 🎉🧠

@skalderman

4 жыл бұрын

BlackWolf6420 these concepts don't have applications in this era

Instead of bankers

@dontquestionmyname5490

7 жыл бұрын

i asked most of students in my class, about 85% of them want to be bussinessman or bank related jobs... no physicist or astronomer.

@williamglover8108

5 жыл бұрын

Don’t blame them. Society does not sufficiently value scientists. Spend 25 years of your life in education, and maybe you’ll get a job, maybe, that lets you continue doing science. But it will pay a fraction of what you would earn in finance/business.

@jojolafrite90

4 жыл бұрын

They got it.

@jojolafrite90

4 жыл бұрын

That sucks so much... :( Though, I'm not even surprised. That's what our dear leaders want.

I love this channel

I really love your channel. The topics are so interesting that I watched all the way back to 2016, haha.

amazing video!! is that lost energy that you mentioned at the end anywhere related to the parallel universes theory??

The cosmos is finitely larger than visible and its outer rim-shell collapsed back and gravitationally sucked the inward, outward, and we're seeing it pull through the CMB...

If the whole universe is spinning around its centre would this not create dark energy?

@baxtermason6909

4 жыл бұрын

...don't look at me...I'm just a knuckle-dragging engineer...;-)

@zephilandevol

4 жыл бұрын

I’m not sure how that would create dark energy. But if the whole universe is spinning, then that violates the copernican principle because then there would be a special point. and not only that but general relativity from what I read is machian. For there to be some force that’s felt when the universe spins, it has to be spinning relative to something. But spinning relative to itself? That doesn’t make any sense

@Faizanmohammed

4 жыл бұрын

​@@zephilandevol yep that thing makes no sense

Elastic force seems like the perfect way to define negative energy. I love the analogy of rubber bands pulling inward that was used to define negative pressure. It’s almost like because positive force pulls outward while negative force pulls inward, infinite expansion can be created. If the relativistic effect of negative energy mathematically has to be opposite to positive energy, then wouldn’t the volume of positive energy in a given space dictate the velocity of expansion in that given space?

Last 3 minutes of your speech is devine. Less bankers more cosmic lovers

You say at 11:30 that the law of conservation of energy no longer applies to an expanding universe. Does that also mean that the 2nd law of thermodynamics does not apply? Because this contradicts what you said a few episodes ago about "Heat Death is coming". Maybe it's not so inevitable after all?

@facundorodriguez3315

7 жыл бұрын

now they have the beta version of the second law of thermodynamics. Apparently it runs in all the universes, and is more stable than the previous version: "Entropy ALMOST always increases"

Wait, that smoothness of spacetime is only an approximation on a large scale. Doesn't that mean the negative pressure of dark energy should work differently on the smaller galactic scale?

@nakanoyuko

5 жыл бұрын

no

@matisle119

3 жыл бұрын

Yes

I loved the last rebuttal

Thanks for explaining this in a way that even a social science and arts class student can understand!

What if the universe is expanding into an outside low pressure zone?

@dannydetonator

5 жыл бұрын

You mean you farted?

@ruatsangawhite7261

5 жыл бұрын

Well that could be possible...but it could also mean there is something else outside the universe... something existing outside the universe before the big bang

@d3neu

Жыл бұрын

Obviously beyong earths atmospheric space contains less gravity compared to earth's . But gravity from planets or blackholes vortex / spin holds different density.

I fell asleep watching KZread and woke up here. Someone explain.

@Jenniferab32

4 жыл бұрын

Lmfao

@fernandoxavier6392

4 жыл бұрын

Antisleep properties of dark energy.

@googlekullancs564

4 жыл бұрын

@@fernandoxavier6392 🤣

Very interesting and worthwhile video.

From where the energy comes? Maybe from nowhere. The law of conservation applies to a Newtonian universe; in a relativistic universe it can be provided from the curvature. The more the Universe expands, the more is filled with Dark Energy. Wow. You left me speechless...

11:48 could some explain this to me, for this defies a fundamental principle in quantum physics

@casesusa

8 жыл бұрын

+Nikolai Baklykov .... no, I can't ... but only because I don't understand any of this..... I hope this answer is somehow helpful...

@treasurehunter3744

7 жыл бұрын

It means "where is our free energy devices, science?" because I'm with you. I always ask "If conservation of energy is nonexistent in certain situations, how can we extract free energy?"

@MinecraftAdmin99

7 жыл бұрын

Dark energy is not conserved in an expanding universe, but normal energy still is. If dark energy is a constant across all space, it means that we probably can't use dark energy in any practical manner, as we would have to change it's form, or location to use it, which would not be possible while keeping it constant.

11:36 if the law of conservation of energy does not apply in an expanding universe, and we are in an expanding universe. Dosen't that mean that over unity machines are theoretically possible?

Great session Matt!

Most clear episode doubt clearing

Is it possible that the concervation of energy still works in expanding universe? If vacuum has constant energy and the more vacuum the more energy maby its comming from matter. Think of it that way: the universe is cooling since it began. Cooling means emiting photons. Photons lose energy when they travel through expanding space (they become redshifted) So maby thats the energy sorce for expansion. And why the expansion is accelerating? Maby its just like in Hawking radiation of black holes - the black hole emits more energy expanencialy. If in the future all matter will end in black holes and then gets emited as photons then after infinite time these photons will lose all energy (wavelengh = infinity) which means they will stop existing. In that universe there will be only vacuum. And since you have just vacuum its immpossible to tell if the universe is expanding or not. And that point in time could happen sooner than in infinity. If energy is not infinitly devisible but insted comes in packets (probably true)

@OMGanger

8 жыл бұрын

+Przemysław Szymusik I see what youre saying. Perhaps the energy gained by an expanding universe is mechanical energy lost by particles. If im not mistaken, however, the density of matter in the universe is too low to account for the negative energy.

@przemysawszymusik1516

8 жыл бұрын

+Sebastian This is just a wild gues. Im not a physicist. But the matter density is too low right now. In the past universe was more matter dominated. The energy from matter decay adds up. Think of it as a melting smowman analogy. At the beginnig snowman is big and there is little wotar around it. But the more it melts it gets smaller and our system becomes water dominated and gets more and more surface

@AlcyonEldara

8 жыл бұрын

+Przemysław Szymusik : nope. Let's say that the total amount of Energy is E. given enough time, since the Universe expands forever and faster, it will create more energy than E.

@sigbjrn4535

8 жыл бұрын

+Przemysław Szymusik scienceblogs.com/startswithabang/2011/12/02/dark-energy-accelerated-expans/

@ChongFrisbee

8 жыл бұрын

I also wandered about this. The missing energy from red shifting and appearing energy, plus my personal desire to live in a constant total energy universe. I would also appreciate more discussion on this topic.

Free energy, get me my perpetual motion machine.

This is the future of PBS.

As all that was hard enough to understand lol, I understand its supposed to be hard to understand lol...but what I did enjoy was that negative pressure explanation, man that really added a new dimension to my thinking, thanks Matt

If energy can be created out of nothing like how you were saying toward the end of the video (11:20) in an expanding universe, then we can't 100% be sure that the future of the universe will be a dark, cold and dead infinity spread out. What if the acceleration becomes so much and the amount of dark energy increases so much that some new phenomenon occurs?

@commode7x

8 жыл бұрын

+InkEyes Maybe instead of the universe being cold and dead, the acceleration could cause existing stars and planets, with active fusion and living civilizations to be torn apart by expansion waves, ripping through portions of their solar systems, annihilating their section of the universe at the quark level as their few survivors of the event look on with horror as the universe itself rips itself apart before their very eyes.

@CaedenV

8 жыл бұрын

+InkEyes The issue here being that Dark Energy is ... well... dark. We cannot directly see it. It does not directly interact with the physical 'stuff' of the universe. It is an energy in the universe that we measure precisely because of expansion. It does not produce heat or matter, it just produces more space-time. Too much space-time and not enough matter is the literal definition of heat death.

@pedrohenriquemorais4979

8 жыл бұрын

+InkEyes Or our universe will collide or run over another universe, so much shit can happen in the future.

@andrewfrank7222

6 жыл бұрын

The survivors of the Abrahamic religious world war will have to invent some measure of time travel and let us know.

@luciferangelica

6 жыл бұрын

Andrew Frank let's not. let's, instead, abandon abrahamic religion

Could this energy gained be coming from matter/energy entering our universe from outside of it?

@mockingbbirdkilla1771

5 жыл бұрын

Nah dude. Its from the ether. Or higher/lower dimensions. Probably.

@mykofreder1682

5 жыл бұрын

The reality is space time is expanding and you can write equations about it but it may just be an unknow state of space time that is and has to be accepted. If the Universe were once a dense plasma it would have to been like the interior of a black hole and have no future. This primordial black hole was torn apart by this expanding space time that grabbed ahold of every particle and accelerated it to a speed to overcome the gravity of the largest and probably densest black hole imaginable. It flashed over into atoms once the density became low enough (the poorly named big bang) and it continued to pull these atoms apart at a speed high enough so it would not reform into a black hole. When the density became tolerable for universe type things like stars and galaxies it slowed down and is currently expanding at a speed we cannot perceive locally, but the fact is the local space around us is either stretching or adding more empty space all the time and carrying us farther from item who's gravitational effects cannot overcome it. There may be math behind it but nothing more interesting than a very dense plasma (without expansion) or near zero density fundamental particles (with a single initial expansion rate fast enough to tear a black hole apart) would exist if this precise recipe of expansion was not followed, it does not appear to be luck or chance.

@ruatsangawhite7261

5 жыл бұрын

That's highly hypothetical,yet very well be possible... but I don't think they are favoring in possible forces from outside universe in the equations

@mockingbbirdkilla1771

5 жыл бұрын

@@ruatsangawhite7261 Well, no one really has quantum mechanics figured out either. There is definitely a way to go faster than light without using massive amounts of energy. We just don't know the cheat codes to this universe yet.

Thank you.

I listen to these at night. They are fun and informative

"beep beep bop bop" "Come"

please someone help me with this, this has eaten at me for years! what if instead of it being a force, dark energy is a byproduct of something else? what if at the smallest levels of space and energy, at planck levels, there is a virtual particle that comes in and out of existence, a borrowed energy that has a knowable minimum value? the uncertainty principle says we cannot know the momentum energy and the position at the same time, so what if this set energy creates space itself as it moves? we cannot know its location because the location itself is coming into being. once the space is created it no longer exists as the virtual particle. this byproduct, this generation of space, would create a negative pressure throughout the universe. could this be a viable explanation to dark energy?

@saeedbaig4249

7 жыл бұрын

That idea's addressed in this Veritasium video (i recommend watching the whole thing, but you can just watch from 0:00- 1:22 and then from 6:20-7:07). Basically, when you try to actually calculate the energy density of space based on the idea of virtual particles, your prediction is thousands of orders of magnitude off of what the experimentally-observed energy density of space actually is. That's kind of a problem for the whole dark energy=virtual particles idea.

@sterlingavellino8139

7 жыл бұрын

Ron Walsh People thought of that. They tried to calculate the total energy of Dark Energy using that. They were off. By a lot. Like, a lot a lot.

@ericeaton2386

7 жыл бұрын

Wait, you didn't actually link to the video, the timestamps just take you to this pbs video. I'd be really interested in seeing the veritasium video, do you have the name of it?

@funkyplasmaman

6 жыл бұрын

dark energy is just space/time outside the presence of local matter and no different from gravity which is space/time in the presence of local matter

thank you for your entertaining presentation.

Hi Dr. Matt, Thank you for going over the symbols

Aliens probably use dark energy as fuel for their spaceships, while we don't even know what dark energy is.

@sinfuleldian9826

8 жыл бұрын

+Scott Velez We'll get there, eventually.

@mellowfellow6816

8 жыл бұрын

+Scott Velez They probably use it to brush their teeth.

@TheCopelandr

8 жыл бұрын

+Melo Boy I laughed so hard at this

@delawarecop

8 жыл бұрын

+Scott Velez Those same aliens probably use atheists brains as toilet paper - hence why alien abductions exist:)

@painstruck01

8 жыл бұрын

+delawarecop they use Christian brains in lieu of FRIENDS reruns.

I never wanted to be a banker. I always wanted to be... a lumberjack!

Oh yeah, this video will take me a bunch of listens to understand.

wonderful explantation !