Blur
Field Theory Lyrics

Jump to: Overall Meaning ↴ Line by Line Meaning ↴

You can't see me now

I'm right in front of your face

I was there all the time

But still there is no trace

You speak as though I've never been

Have I been erased

I know I'm not dead

I long for your embrace

Can you see me

I am right here

I need to be

Visible to you, you never let me close to you

I need to know

That you're still here

Don't you turn your back on me

Overall Meaning

The lyrics of Field Theory's song "Blur" reflect the frustration of feeling invisible to someone despite being physically present. The song begins with the singer expressing the feeling of being ignored despite being right in front of the person he/she is addressing. The singer wonders if he/she has been erased from the other person's life, emphasizing on the feeling of being unnoticed. The line "I know I'm not dead, I long for your embrace" further emphasizes how the singer is not invisible, but still not being seen.

The chorus of the song emphasizes on the need to be seen and acknowledged by the other person. The singer expresses the need to be visible, for the other person to not turn their back on him/her. The song captures the feeling of being ignored, the desperation to be seen, and the need to be acknowledged.

Line by Line Meaning

You can't see me now
I am present but invisible to you

I'm right in front of your face
I am physically nearby

I was there all the time
I have been around for a while

But still there is no trace
I have not been noticed or acknowledged

You speak as though I've never been
You deny my presence or contribution

Have I been erased
You may have intentionally or unintentionally disregarded me

I know I'm not dead
I am still alive and present

I long for your embrace
I desire your affection and acceptance

Can you see me
Can you perceive my existence

I am right here
I am in close proximity

I need to be visible to you, you never let me close to you
I want to be recognized and included but you have always kept your distance

I need to know that you're still here
I need reassurance of your presence and involvement

Don't you turn your back on me
Do not ignore or abandon me

Contributed by Isaac F. Suggest a correction in the comments below.

To comment on or correct specific content, highlight it

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01Blur4:28

PT4M28S

Field Theory

02Sandpaper Tongue3:39

03Silhouette4:02

04Unforgotten5:42

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Comments from YouTube:

ScienceClic English

3y↑743

Many thanks to my friend Thomas Harvey who helped me write this video. Thomas was my roommate during my Master's at Cambridge, he is now doing a PhD at Oxford University, and quantum field theory is his daily routine : https://www2.physics.ox.ac.uk/contacts/people/harveyt

Filip Korol

Hi, can you describe how Higgs field works?

Star Traveler

@Hugos Thar No, he doesn't have to read all your replies. The original one sums it up.

andrew cobb

2y↑1

@Free Citizen hi. 'Received pronouciation' - I guess the currently accepted standard ways of saying words correctly - itself maybe best summarised as being intelligible to the maximum proportion of listeners. One prefers "arse" to "ass", for example :)

andrew cobb

@Hugos Thar I disagree, to the extent I'm bothering to reply. Absolute clarity of diction maximises clarity of communication. Such ad hominem attacks appear subjuvenile - to be clear, not an attack in itself, more a probabilistic interpretation. I thought this video rather good. Surely you could construct a more useful critique? A high proportion of viewers might well find such unambiguous pronunciation helpful.. innit?

Andrea Salbego

please open a lbry channel. Better than You Tube. Decentralised, no adds and crypto tips

91 More Replies...

Michael Uvarov

3y↑3.5K

Wow, someone actually described what spin is

Part• •ticle

W o w ❕ GoodWork!!

andrew cobb

@Michael Roy if you mean confirmation bias, I agree. I had hoped expectations might allow the fog, if not the clouds, to clear :)

Michael Roy

@andrew cobb surely expectations cloud our vision.

andrew cobb

@Michael Roy beware 'obvious' :)

sumsar01

Not really.

143 More Replies...

Ulysses

3y↑750

This visualization is so advanced, its like partaking in future starfleet academy education

Manly Man

2y↑1

We live in a sci fi universe

Ro Lux

@Brandon Myers no problem man I was just confused, that’s why I asked.
Have a nice weekend!

Brandon Myers

@Ro Lux sorry about that I believe I'd made a wrong post

06howea1

3y↑3

Need it in full 3d with VR
you can visualise the 4th dimension with VR EASILY

ujjal shill

I understood it cause I used to do game development and 3d modelling

5 More Replies...

Guy Edwards

3y↑29

You just explained quantum spin in a perfectly sound, fairly simple mathematical context without resorting to the tired line "particles don't really spin, but you can think of it that way". I'm absolutely blown away man! Also, I'm a huge fan of how you symbolized conservation laws by their corresponding transformation symmetry in the appropriate spaces. Not super necessary to understand the content, but a nice little something extra for those in the know!

Jack Meseyton

3y↑70

For a non-physicist layman, who just happens to enjoy reading and watching YouTube videos about it, your videos are fantastic. Great work. Keep them coming!

Vladimator

2y↑1

@La Woull. Right here...👋

La Woull.

3y↑1

Do you like collard greens??.🤔

simon sels

3y↑489

Wow, amazing job!

If anyone would still doubt the quality of this content:
As someone with a PhD in physics working at CERN, I can tell you that this is the most accessible, compact but accurate introduction to QFT I have ever heard!

simon sels

2y↑1

@MKRfootball2010 My default position is to not believe any claim people make on the internet about their supposed capacities. I don't blame you at all for not believing me. The reason why I watched this video in the first place, is because part of a job in academia is so-called 'Outreach'. It deals with informing the general public about your field of research in a clear, informative, but correct manner. The best way of getting better in outreach is learning from others by watching their material. That's what I did. Other than that; I'm a physics nerd, so I also just get excited when I see an enjoyable video on physics...

MKRfootball2010

ポンコツ because he’s lying

andrew cobb

@James Lorman no basis for you to be sure.. ah, I see :)

andrew cobb

@Pascal Fragnoud they are, mostly. Not sure if this helps

Tony Santos

I am so glad I have come across witj this. I have been looking for a video that could help me understand better such complicated matter (in the 2000s, all seemed so counterintuitive...) But this video gives me the impression that models are evolving and studies accomplished apart have come together in a very coherent manner.

29 More Replies...

Scott T

3y↑1.4K

Speaking as a physicist, this is SUCH an exceptional explanation of QFT.

isodoublet

@John "But that's just the Copenhagen interpretation, right? "

No, it's quantum mechanics. Every "interpretation" must eventually recapitulate that statement, regardless of how it does it. For example, a many worlder would say that the state of the universe split into many semi-classical realities and that you have a chance to fall into one of them... which, from the point of view of your observations, is the same as Copenhagen.

Pilot wave theory is a separate case since it has no field theoretic formulation, at all, and doesn't work with relativity, at all. It works for a fixed number of nonrelativistic particles only.

John

@isodoublet "Philosophically it's wrong too, since it forgets that as in every quantum process all you get at the end are probabilities for the various measurements..."

But that's just the Copenhagen interpretation, right? What about the pilot wave theory? Sure, you sacrifice locality but I don't see the 'hype' for such a criterion.

andrew cobb

@isodoublet Thanks, that's both clear, and likely :)

isodoublet

@andrew cobb I don't think physicists are split about how to "do" quantum field theory (though this a very specialized topic and most physicists aren't familiar with it; among those that are, there are varying degrees of expertise on different aspects of it depending on each physicist's focus), but there may be a split in what is important to convey, and how, in video aimed at a broader audience such as this.

andrew cobb

@isodoublet hi isodoublet. Very concise comment - though as a layperson merely observing these comments, how do you explain the wide range of views expressed by those claiming themselves to be physicists? Seriously, almost from total praise to 'waste of time'. Such views confuse me, as they appear to be incompatible with the notion of belonging to the same group - professional physicists. Or are physicists themselves entirely split on this wonderfully difficult subject, this effort to explain everything? Just asking. Old UK duffer here :)

41 More Replies...

Stephanie Holtz

3y↑42

This is such a great visual aide to understand something which is (extremely difficult) to visualize/comprehend. I am not a physics major but am still deeply interested in the subject. Please keep making more videos..haha

Neerkoli

3y↑14

This is one of those "woah!" moments for me. You have that gift of explaining things clearly and precisely. People like you are making ordinary mortals like me understand quantum physics and relativity, at least a little bit. Thank you!

Fernando Maglio

3y↑9

As a passionated without any academic study, I can't thank you enough for this visualisation. It makes it super simple and makes a lot of sense. I had some issue even with simple concepts jumping from QM to QFT, like characteristics of particles, even as simple as particles charge. It has been always a step of faith of particles behaviours which didn't make much sense. Now I believe I can say that charge and interactions are phase QFT waves interactions and their disturbances. I'm still totally ignorant, but at the least I got comfortable to have my own partial understanding.

scepticalchymist

3y↑7

Beautifully animated and impressively clear, concise, and comprehensible. A true piece of magic.

vaun Jeis

2y↑12

12:23 blew my mind because while it is useful to think of a string as vibrating at a particular frequency, the truth is indeed that any given section of the string is vibrating differently from the rest, and it is the synthesis of all those parts of the string at once which produces the final frequencies. Once of the best ways of describing wave function I have ever heard.

Fever Dream asmr

3y↑55

As I said earlier, this channel is better than a whole physics department

heli copter

😂

EngineerNick

3y↑2

This is amazing :) I think having this kind of thing freely available on the internet may be pushing us toward new discoveries faster than a yet bigger particle collider would.

Dedi Khana

3y↑4

The best 15 minutes of my life. Thanks for the sharing. I'm studying QFT by myself now and this visualization helps me a lot.

Nicholas Bohlsen

3y↑871

The animations in this video are extremely impressive. They present some of the basics of QFT, much better than many other casual sources. (and visualisations like this are also almost unavailable in an academic context as well)

Al N

@rod van meter he’s not gonna tell you

Yash

@santzero santone please mention what context these videos are in. I see u shared thesee above too.

santzero santone

3y↑1

https://www.youtube.com/watch?v=WxYH5CXbpYA&list=PLGxHgODxXr9RcvXtPEBRbjFNxp1Qnf6x6&index=4

santzero santone

3y↑1

https://www.youtube.com/watch?v=qfi0vaBMnTA

Robert Forster

3y↑2

Your visualizations are like something out of a sci-fi Hollywood movie.

8 More Replies...

TheOrigamiInstructor

3y↑2

Wow man, this is the first video I’ve seen among thousands that actually makes ;me understand QFT. I knew all these things but couldn’t stitch them together. Thank you

Oz yaj

3y↑3

I’ve been watching a video or two of yours (or 3 or 4) each night for about a week, and on every occasion, I am amazed at how well you explain and animate/visualize these complicated topics. Way to go!

Patricio Hondagneu Roig

3y↑47

How dare you make the meaning of particle spin finally click in my head? No videos should be this good.

Carlos Bonin

3y↑1

You explained QFT for the laymen in an amazingly simple way! Congratulations!

Artsenor

3y↑279

You know, I'm a physics student, currently learning all of this stuff, and I've been searching on YouTube for months to find some way to help me visualize QFT beyond all the equations on my sheet. Well, that's the exact video I couldn't find, thank you so much for this amazing work !

Oleksii Gryniuk

@Absolute Zero well, yes, technically you can, to some extend. For instance, a typical molecular dynamics software (e.g. protein dynamics in pharmacology etc.) does use results of QM calculations (Born-Oppenheimer approximation) to obtain the eventual classical dynamics. Of course, it does not literally solve all-particle QM though, there are simplifications and semi-classical approaches/transitions (well, I should rather say it uses classical dynamics in the end, but that would spoil my argument :) ). Perhaps I did exaggerate a bit, but the classical limit of QM is not a mystery, apart from almost philosophical (but important nonetheless!) questions regarding the nature of a measurement in QM. It is as complete and as consistent with experiments as we can get so far.

Absolute Zero

@Oleksii Gryniuk complicated or not is not the bad part, but is it actually complete? were all the laws of physics discovered? can I use existing mathematics of quantum mechanics to write a simulator program in software and match it the real world ? that's the question

Proto Rhinocerator

3y↑1

Don't you just hate having to be the only one capable of making a visual representation?
I think in pictures. My assumption is that if someone can't visualize it, then they're making it up. It's on them to prove me wrong.

Oleksii Gryniuk

3y↑4

@Ralph Dratman The important thing here is not to get an impression that quantum particles truly are just fuzzy blobs bumping into each other, which of course is pretty far from reality...

Standard Model is a specific realization of QFT, just like a swinging pendulum is a specific Newtonian system. Quantum electrodynamics is incorporated into SM, but itself is a separate example of a self-consistent QFT, which describes electrons and photons. SM has various free parameters (like particle masses) which essentially are just "put in" from experiment. Yet some of the particle content of SM, together with most of their properties, arise from (sub-)QFT principles such as gauge symmetry. This way it was possible to predict new particles before they were discovered (like the famous Higgs boson). The "field equations" are pretty much defined by QFT (or FT without "Q" here, to be precise, in case you are referring to single-particle differential field equations). But to be clear, SM does not simply arise from general principles of QFT, you have to put in the proper (self-consistent) particle content which is confirmed by experiment.

Ralph Dratman

3y↑3

@Oleksii Gryniuk I have not studied QFT and probably never will. Getting a kind of impressionistic view of the ideas involved is very satisfying for me. I do realize that one could not construct a mathematically correct working theory from this video. But it gives me a feeling for the flavor of the full theory that I enjoy.

Here's something more I'd like to know: where do the various field equations come from? The fields for specific particles such as the electron, the photon, the muon, the Higgs boson... are they all just "put in" from various experiments from which the properties of all those particles have been deduced? Or does the Standard Model somehow arise from QFT?

6 More Replies...

Petr Vala

Wow! This is so accessible, beautiful, and simple to follow. I totally love it.

Gérard Jacquemier

3y↑3

Very remarkable video, both for its content, explained in a perfectly clear manner, and for its esthetic qualities

Kyoto99

3y↑1

I've never seen such a good and simple description of something so seemingly complex. And it's mind-blowing that someone actually once came up with this concept by merely observing the universe

Anonymous

3y↑2

I LOVE ALL YOUR VIDEOS!! THEY ARE GREAT TEACHING TOOLS. GREAT JOB!!!!

Abhay Katyal

3y↑392

This is by far the best explanation of QFT I've ever heard. This video seems to go by very slowly, but in a really nice way. Dont know exactly how to describe it, but thank you!!

Basket Weaver

3y↑1

It's because you were experiencing all possible ways of viewing the video at the same time

santzero santone

https://www.youtube.com/watch?v=qfi0vaBMnTA

Zovi Sapphire

3y↑4

This is EXACTLY why I like these videos. concepts are explained visually, pacing is slow enough for actually grasping the information presented, while being fast enough that you don't lose the thread. The background music track helps with this IMMENSLY.
Maybe it's just me but that + speaking speed + information pace in a great balance is probably the most important factor when educating.

bmoneybby

3y↑2

It's extremely impressive!

KotSR

3y↑33

I believe it's the pauses. They give room to comprehend the explanations

1 More Replies...

Slippery Fish

3y↑1

This is a really great video, I hope in the future you decide to do a series on QFT/Gauge theory like your general relativity series I think gauge theory in terms fiber bundle connections and RG flow would be much easier to understand in visual form than from textbooks

kieferonline

3y↑4

Hats off to the creator of this video. Really good script and excellent visuals!

Kieran Wagstaff

3y↑328

I mean, scary monsters are great and all, but it's this stuff that keeps me awake at night.

nobody in particular

@Jakub Zlámal i dont think we are capable of destroying ourselves entirely

Jakub Zlámal

@nobody in particular don't worry, vacuum decay or black hole is nothing in comparison with our reckless stupidity. We will destroy ourselves I bet 🤣

nobody in particular

3y↑1

@LouSaydus i feel like we're more likely to die from a rogue black hole then vacuum decay

Pronob Sarker

3y↑3

@LouSaydus some eldrich stuff

LouSaydus

3y↑17

As long as you don't think about vacuum decay you're fine.

1 More Replies...

Mohsin Shafique

3y↑2

I'm a new human being after watching this and now things seem different around me. Cannot unsee this video ever. Thanks for such a wonderful explanation.

Sci Factorial

3y↑343

Hands down one of the best introductions available. Love the visualizations, basically you are the 3b1b of physics! Absolutely deserves more views!
Please keep up the great work with more videos like this. Excellent stuff!

I might have missed it but is there a video about how you do the visualizations?

Yash

@ScienceClic English a video sharing some tips/insights would be verrrrry much appreciated.

ScienceClic English

3y↑7

Yes I use Blender for some projects, it's great! (I used Maya before but switched to Blender a year ago), but for these videos as it's mainly 2D I am more familiar with AE

Tokyo Mobster

3y↑2

@ScienceClic English I would recommend learning Blender

Haotian Gan

3y↑9

@ScienceClic English You are amazing

ThePidrittel

3y↑11

Very very impressive!

1 More Replies...

Maxim Quantum

3y↑2

I've learnt more from this video, then I did the past month. Thank you for answering the questions I had but couldn't find an 'understandable' answer to.

Jose H López

2y↑1

I think the same as I read in a previous comment... Arguably one of the best science channels out there! You really can see how much he understands these topics as he explains them with so much propriety and simplicity.

Federico Fros Campelo

As an engineer who loves Quantum Mechanics and Relativity, I'm so impressed and delighted to find your production. This is amazing. So explanatory. Thank you!!

Mike W

3y↑2

This video brought so many concepts I've read about together, and visualised them in such a way I had a 'wow' moment. Thank you.

Paul Goodwin

3y↑6

This is hands down the best explanation for QFT I've ever seen.

walter tanner

3y↑2

Fascinating! Thanks a lot for this clear description of a very complicated, hm, field of physics!

Juan Rincon

This is absolutely incredible work. Thank you for making this.

vishu saini

Absolutely stunning work!
Great work is done to visualize quantum mechanics, and QFT. Hats off! to the imagination of the creators.

Jakub Waligórski

3y↑718

Did you just explain what an electromagnetic force is. Wow

Frame

@Polosky Would you be able to expand on why you cannot sing yet torture us all by uploading videos of you doing so anyway? I'm quite curious.

Johanna Sörngård

3y↑4

@Manuel Jose Blanca Molinos Virtual particles are called that because they are not real and observable. They only show up in calculations when describing physical processes using a certain method of approximation called perturbation theory. If you do not use this approximation scheme you will never see virtual particles.
Say I am calculating how much money I have after getting my salary of $33 if I had $27 in my account before. 33+27 is too complicated for me, so I split the calculation into a sub step where I take 3 from 33 and add it to 27 to form 30+30, which I can work out. Those three dollars that I transferred from my salary to my account during my calculation I call "virtual dollars". They are not real, just an artifact of how I solved the problem.

Yash

@l1mbo hehe lol

l1mbo

@Manuel Jose Blanca Molinos believed to represent random fluctuations in electromagnetic field; some indication for their existence found in the Casimir effect but I don't know the details so don't quote on this last one

Manuel Jose Blanca Molinos

What is the physical meaning of a virtual particle that by definition is impossible to observe, as the video at 7:32 indicates?

12 More Replies...

Punky Pinko

Quickly becoming one of my favorite channels. You actually explained spin. Thank you!

Henrik J

3y↑2

That is an astoundingly beautiful visualization of QFT. This, I am sure, will be used in many, many classrooms all over the world.

HL

This was really amazing.
A perfect explanation.

Albert Renshaw

This is one of the greatest videos I have ever seen. I wish so desperately I could animate like this to visually describe some thoughts I have.

Lorenzo Zappa

3y↑156

Wow, I am actually studying this stuff but I often get confused by algebra and I lose the meaning behind. Your video is absolutely amazing, everything is explained in such an intuitive way. It reminds me what I am doing when I get lost in equations. Thank you very much!

Bezbez Zebbyson

@Youtube Sucks Peskin is good if you already know qft

Youtube Sucks

3y↑2

@Projjwal Dubey Peskin in Schroeder give by far the best substantial introduction to QFT available

Slippery Fish

3y↑2

@Projjwal Dubey the lecture notes by David tong are pretty good, also free :)

Projjwal Dubey

3y↑4

Hi Lorenzo I am a novice. But can understand maths ans enjoys. Please recommend a book on QFT, the one I have is too complicated for me.
I have Introduction to QFT by Peskin and Schroeder

ScienceClic English

3y↑29

Very glad this can help you ! Good luck in your work, QFT is very interesting

Andrés64B

3y↑1

Wow! Best video I've seen. Very well explained and great graphics. Being able to explain something that complicated so well that even I almost understand it. I love it.

Marten Samulowitz

im really impressed by the quality of this video! great explanations!

Rationalific

3y↑3

1:46 - "In this video, we build together Quantum Field Theory". "Hell, yeah!"
In the end, I think you put in a lot more work than I did on this venture... In fact, WOW! I don't know what is more astounding...the quantum world or that such a deep yet understandable and visually compelling video could be produced. Amazing job to those involved!

mgb

These are seriously so well done. Thank you for this.

Satish Goda

3y↑1

Thank you so much for creating this lesson. I am curious to know about your process and tools used to create this video.

Jonathan Ansell

3y↑1

Exceptional! Best explanation of QFT I’ve ever seen. Bravo.

Hablo74

Amazing! At least after more than 10 years of looking at the subject I can tell I've visualized a QFT!!! Great work!

Captain Price

3y↑6

It is masterpiece, I remember watching this a few months back and banging my head but since they I have gathered some more mathematical and physics knowledge and now I totally got the video and I fell in love.....

Seth Morabito

3y↑92

This may be one of the best science videos I've ever seen. I'm not kidding, it's really breathtakingly clear and understandable content!

ivelina mladenova

3y↑1

Amazing visualisations! Explanation was simple yet precise! Thanks for making this

Michael King

When he showed that the electrons repelled each other my mind was blown. After many years of learning about this on my own, it all came together in that one moment.

David Roberts

3y↑1

This is spectacular. The pauses are great, giving a chance to let it sink in the mind. Your visuals and script work tremendously well. I only now have a better idea of spin due to your work.

HenryCGS

3y↑1

I'm slowly starting to really understand how the universe works (of course, without going into the complex mathematics involved), but there still is one thing I'm really struggling to comprehend: the electromagnetic field. Is it the same as the photon field, or just a consequence of the interactions between electrons? why does the electric and magnetic force behave differently? how do magnets even work?

Sphakamiso Zondi

3y↑2

I dont know how much i appreciate the fact that you have defined and explained what a quantum spin is.

Drub Drub

Extremely well made, you just made quantum mechanics so much easier to understand

D Gates

3y↑1

WOOOOOW!!!!

The minute you did the guitar analogy, I instantly understood the deal with all those charts.

You were describing the "harmonic series" and it's absolutely fascinating!! You can even experiment with it with a guitar!

Barry Zeeberg

2y↑2

We know that Newtonian mechanics represent a quite good representation on the macroscopic level. Can you show how the underlying quantum field(s) result in macroscopic behavior that is consistent with Newtonian mechanics?

To put it another way, say that we started out with a knowledge of quantum fields, but no knowledge of Newtonian mechanics. Would we imagine that some simple equations could describe the behavior of things that arose from the quantum fields?

SEAMUS

3y↑59

Seriously...thank you for taking the time to animate this and provide visual context to these theories. A rarity on youtube, instant sub!

ScienceClic English

3y↑6

Thanks ! Glad you liked it :)

Victor J.

Thank you for providing such a wonderful visual presentation of the quantum field theory!

Gershom Maes

2y↑1

Fantastic video! I have some questions especially around the field interactions. PLEASE HELP if you would like to :^)

- Around 11:26 we see an example of a virtual photon interacting with 2 electrons. The image suggests the photon "connects" the two electrons - but as far as I understand, the virtual photon is a result of random fluctuations in the photon field, and should have no awareness of where electrons may be manifesting. How does the virtual photon "know how to" connect the electrons?

- What is truly happening when fields interact with each other? Field interactions allow pairs of electrons to absorb photons (causing the electrons to generally diverge from each other). It seems during this interaction the photon ceases manifesting - so the fluctuation curve in the photon field at that region becomes flattened (no area under the curve)? And in the electron field there is amplitude at the locations of the 2 electrons - this amplitude isn't affected by the interaction, but somehow the regions of amplitude will now tend to move apart from each other as time progresses? It sounds like energy hasn't been conserved; energy seems to have been taken from the photon field, and not paid back in the electron field (or elsewhere). Can anyone detail how energy is conserved here? (And how the electrons "know" to diverge from each other?)

I had to think a lot to pound out this flustered comment, and now I'm left more confused than ever :^(

aleksandar milenkovic

Finally, there-s somebody standing on the threshold of great pondering: “…. but somehow the regions of amplitude will now tend to move apart from each other as time progresses? It sounds like energy hasn't been conserved; energy seems to have been taken from the photon field, and not paid back in the electron field (or elsewhere).” The answer to your predicament perhaps is contained in these words: “There is becoming of continuity but there is no continuity of becoming,” A.N. Whitehead. So far physicists didn’t pay due attention to this postulate, i.e. that extension itself is an entity supposed to come into being in order to exist. The process of becoming of continuity requires some energy, etc.

Tony Santos

Wow. I simply loved this video. So comprehensive yet so clear. Help me learn.

MidnightSt

3y↑1

You are one of the most valuably contributing members of today's society, I would say, and extremely underrated. I cannot express how much I love you for ...not just the knowledge, but through your great animation also seeds of... sort of... intuitive understanding of things I never thought I could understand this way on this level...?
Beautiful human being, brilliant mind, thank you for being who you are and doing what you do <3 . Live long and prosper.

*beingS, at the credits i realized it was a bit stupid to associate the voice with sole creator of the videos, I apologise and extend the previous paragraph to all involved in creating these videos :)

KevinGrzyb

3y↑136

Beautifully explained, am gonna share it with friends that are also into this stuff

Loth

I’m also gonna share it with friends who are not into this stuff bc maybe they will be after watching this

Tom van Leeuwen

I'm quickly done with the sharing...

ScienceClic English

3y↑19

Thank you that helps a lot 🙏

רותם שלו

3y↑7

As someone currently learning QFT, yeah this is very good. Also note that apart from the standard model, one can use this exact formulation in other contexts to a great effect (for example in condensed matter physics, where we have some special symmetries and behaviours that are just not possible in nature or in particle accelerators)

Mikhail Yaroshevskiy

@רותם שלו thank you for the explanation! This is really exciting!

רותם שלו

2y↑1

@Mikhail Yaroshevskiy In condensed matter? Essentially yes - for example hybrid states of electromagnetic+mechanical waves called plasmons display exact particle-like behaviour, like being quantized, being Bosons, having an effective mass, and so on. Most scientists I know define such effects as particles, though they aren't as elementary as say electrons.

Mikhail Yaroshevskiy

Would those be particles as well?

Gideon Max Merling

3y↑1

Question, aren't photons the result of an interaction between fields (electric and magnetic), and not a field of their own?
Also, are there any more particles which aren't just excitations but also interactions between fields?

David Nikolić

3y↑2

I've started watching your videos and this is definitely a S-rank edu channel.
I'd love to see a video on color charges and spin 2 and 3/2 particles

Stapleman 007

Basically spin 2 results in two arrow spins per one graph rotation, and 3/2 results in three arrow spins per two graph rotations. IE the numerator is arrow spins, the denominator is graph spins.

Skjult Navn

3y↑1

Well explained. Easy to grasp and understand!

Fredy Arce González

Your animations are amazing! Can you tell me which software is used to build them?

raif sam

3y↑26

amazing explaination, as a experimental particle physicist, i'll give this a 10/10 for the content!

andrew cobb

9 out of 10 for your spelling, but who cares :) May I ask - why do you think there appears to be so much (professional?) disagreement about the usefulness of this video, underneath the lovely images? I'm totally an amateur, wondering at these difficult concepts. Just asking.

Gabor Szucs

Me too, I agree.

Danny Aguirre

Please continue to explain quantum mechanics and subjects in this particular method. It is the only way more people will stop being scared of it and consider pursuing it I think! I’ve just decided to continue beyond the scope of an electrical engineering BA at some point and dive into this. But more and more people working on this stuff is vital to contribute ideas that will continue to make progress!

Wayne Riesterer

Great presentation! If time ellapsed since the big bang tended towards zero and density tended towards infinity, such that volume tended towards zero, then both space and time collapse; at least from a retrospective conceptual view. These things are then insignificant from the perspective of their establishing context. Relativity then is an nth-order contrivance where n is at least > 2. The big bang is an interesting story, but making even a whisper back then from a physical perspective was a long way off. Any sound propagation that could be considered would have a perception boundary coincident to any sound that could be heard. It's easier to discover the fundamental by realising it was a singularity in retrospect and stepping out of it left the potential of it for the multiplicity to discover as form and observing perceptions within the multiplicity provided a means for the singularity to become self aware. Symmetry and complementary states that ensure symmetry is spot on as far as a conceptual view goes.

Sam Grainger

3y↑2

This has been extremely helpful

Juan Rojas

3y↑1

As someone more inclined to music theory rather than quantum theory, that guitar string analogy was really really helpful. Thanks for the great vid.

Oldie Man

I really liked the representation of all fields occupying the same space, and the excitations that create particles. Sometimes I wonder if Gravity is simply an effect arising from increasing mass, rather than a fundamental particle/field.

Jeff Obdeijn

This is the best channel to learn more about the concept of (theoretical) physics and our fundamental reality! Please keep up this good work!!

Epä Järjestys

Wow, this is awesome. Thanks for this intuitive visualization and explanation. One thing I still don't understand, however, is how special relativity comes into the picture here.

RavensEagle

3y↑1

Amazing visualisation.
Really simplifies and makes so much more accessible.

Thank you.

And at the end there, were you possibly hinting at String Theory?

WTF Johny

3y↑4

This is the most breathtaking and interesting video explanation I’ve ever seen!

Olexander Chepil

3y↑1

bravo! I have watched a lot of QF pop-sci videos and this one is freaking brilliant

crowbringer

3y↑48

Great! I like how you make these pauses while you explain stuff. Gives me some time to process what you just said. There are many other great channels here but for the first time I feel like I actually remember something from the video. Sub+

Street

3y↑2

Yeah I watched it on 0.5x playback speed

Rainer Wahnsinn

3y↑1

I'd like a video which really embraces visualizing all particles as waves. I get, that it's simpler to say that they are, but then resort to drawing them as point-like objects. But how much different would your intuition be, if you could see a particle as wave in a field in spacetime (4D) interacting with another wave in another field in spacetime?

I

Thank you so much for such a beautifully clear visualisation of the subject

Sunny Kaura

2y↑1

This is an outstanding explanation that brings so many threads together. When someone can make something very complicated sound clear and simpler for you, you know they have a proper grasp of the subject matter.

Charles Hudson

2y↑1

A beautifully done video. It really explains QFT very nicely. But I must say, as a physicist, unless you know the maths - vectors, complex numbers, fields, statistics, QM - you will never truly understand how 'observational reality' is mathematically modeled. Starting with Michael Faraday and James Maxwell, experimental physics stated to become abstractly modeled. We must never forget that all mathematical models 'represent' and 'explain' observed phenomena, but are not themselves the phenomena. As Kant said: the representation of a thing is not the thing itself. We can probably never really know the thing itself.

Danival

3y↑310

Excuse me YouTube,

Why did it take 2 years to recommend Fermilab vids to me from PBS Spacetime and 3 years to recommend ScienceClic vids to me!? This is beyond superb content!

andrew cobb

@Tophan Bit marmite, I guess?

Tophan

I can’t stand Science Asylum host and the presentation, it’s a shame because the information is very good

Jess Price

3y↑1

And I just found this channel only a couple of days ago already being subbed to both of those channels for years, it's SO good!!

Hockeygod98

3y↑3

PBS Space Time and Science Asylum are my top two physics channels. Just discovering this channel today, I can increase that to my top three physics channels.

Theoretical Physics

3y↑1

@Jared F I just found that channel, finally understood tensors and the field tensor for my gr class after watch just one video there.

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Rafael Serrano Riera

3y↑1

The best of all explanations of quantum field theory, by far.

Bowie mtl

The mathematical representation makes sense and is how I myself would’ve imagined it. The only thing I’m confused about is how this would be put to practical use. I understand that a field can have a set of values to represent e.g. an electron but how do we know the values are “connected” so to speak? Are they just like droplets of energy that just so happen to move together or is there a deeper explanation as to what defined them as one particle?

Michael Sage

3y↑2

BOOM! Thank you so much. As a novice enthusiast, this was extremely helpful.

Josiah Seaman

That was astoundingly good, and I've had it explained to me by one of the authors of QFT.

Shackled

From my research into the gravitational constant I have come to the conclusion that we need to re-frame how we think of time, especially within strong gravitational fields. If time has mass, like many physicists are thinking at the moment I would say we need to see how it applies to the Higgs Boson. I would even go as far as to say that the HB may be the fundamental particle of time and gravity. The Higgs Boson also seem to just be polar opposite of the photon and more thinking needs to be done around that too.

prosimulate

I've seen a tonne of videos this is the best video and will be for a very long time. Hats off to everyone involved in making this exceptionally brilliant video 💚🙏

TerranIV

3y↑1

This is a fantastic video! This should be played in every science class around the world!!!

Mario Ceresa

3y↑1

Thanks for such an outstanding explanation!

dm21865

That was excellent. You made QFT clearer to me that anything else has. Well done!

Ticius

3y↑2

this is best introduction on quantum field theory i ever seen. from myself, I mention that spin 1/2 can be represented as the movement of a vector on the Mobius strip

ScienceClic English

Glad you liked it ! Yes I think it's a goof way to think of it, that's what I tried to represent for the spinors : a little Möbius strip with a vector on it

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