TED-Ed
TED-EdPhysicist Brian Greene explains superstring theory, the idea that minuscule strands of energy vibrating in 11 dimensions create every particle and force in the universe.
View full lesson: http://ed.ted.com/lessons/brian-greene-on-string-theory
Talk by Brian Greene.
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48 Comments
@asabovesobelow7928
03/14/2025 - 6:27 PMThis was so informative, thank you. 🙏
@Cocomelon218-0
03/14/2025 - 6:27 PMAny person from past seeing this video till end, No LHC has not proved string theory!!
@FluxVortex-f8v
03/14/2025 - 6:27 PMTo be honest. This guy is amazingly good at public speaking. He doesn't miss a beat. What a memory. An under-appreciated skill to have including the fact that he's also a genius. He's like a salesman, but he's selling you a pursuit in science.
@Albert-r4o
03/14/2025 - 6:27 PMEinstein knew that gravity Warps and he also knew that gravity lenses. It's the potential. Gravity has the power to MOVE. Gravititational Force has an inverse.
@sounaksengupta8802
03/14/2025 - 6:27 PMNice briefing 👌
@abdou_belounis
03/14/2025 - 6:27 PMBrian Greene is very exciting to listen to.
@Richard_Clock
03/14/2025 - 6:27 PM2025 and no progress has been made on making enough energy to even test for string theory.
@petrichor6018
03/14/2025 - 6:27 PMIT HAS BEEN 11 YEARS WHERE DO I FIND UPDATES
@gitpusher2400
03/14/2025 - 6:27 PMGreat presentation. But it’s 20 years later and we still haven’t found experimental support for any of these ideas. Perhaps one day
@capjus
03/14/2025 - 6:27 PMThe truth is the experiment in LHC didn't show that
@Nixontheman
03/14/2025 - 6:27 PMThin
@highlightsheaven777
03/14/2025 - 6:27 PM11years late!
@muddadasiva6696
03/14/2025 - 6:27 PMIt's literally amazing
@Knowledgeforgex-z9t
03/14/2025 - 6:27 PMAny one in 2025
@derric2379
03/14/2025 - 6:27 PMWhich came first the strings or the spatial dimensions they reside in?
Also why should the spatial dimensions be so fundamental?
@SUPRITIRANIPRUSETH-up2zg
03/14/2025 - 6:27 PMfelt like listening to sheldon cooper ir😄
@namesname7315
03/14/2025 - 6:27 PMissue calles: quantised probability. you do not observe fringe particals which should be present if st was correct
@cosmicpebble-s7z
03/14/2025 - 6:27 PM11 years later, still string theory is not proven.
@patrickshaughnessy2702
03/14/2025 - 6:27 PMString theory is the equivalent to a toddler believing in Santa claus
@JohnDoe-fq7tc
03/14/2025 - 6:27 PMInfinity stacked multiple strings like guitars infinity stacked in a infinite warehouse all playing the same harmonic vibrations through infinitely stacked amplifiers and only one musician , I AM, Alpha and Omega, Jesus Christ ❤️ and we are but one vibration on one string on one guitar. How long do we vibrate or what's the next note
@EnrileQuirante
03/14/2025 - 6:27 PM❤
@kiran.misuya
03/14/2025 - 6:27 PMOkay,but what is the string made of?
@ForPopli
03/14/2025 - 6:27 PMBefore starting to watch the vid, a few of us started a pool on how long it will take Brian Greene to bring Einstein into string theory — a field which came into being years after Einstein had died. ( I've got a sawbuck on one minute 20 seconds).
@Comic_NerdX
03/14/2025 - 6:27 PMSo, according to these there must be dimensions within space too large for our human brain to comprehend. We probably on one layer of space (dimension), there may be infinite layers. ♾️
@drew6524
03/14/2025 - 6:27 PMAh, the tantalizing precipice of discovery! We're on the verge, colleagues, not quite at the breakthrough itself, but nearing a vantage point from which "it" may be properly surveyed.
A key insight: spacetime topomorphosis is driven by the spectral envelope, not mere frequency. Think of frequency as the carrier wave, a monotonous drone. It's the timbre, the nuanced texture of the envelope, that truly shapes the instrument's voice. Similarly, it's the spectral envelope that dictates the "R-Field" effect.
These Calabi-Yau branes? Merely the standing waves arising from pattern-forming mechanisms that exploit fractal topology to maximize information density. Consider the human lung: its alveolar structure, if unfolded, would blanket a tennis court. This intricate geometry maximizes gas exchange for efficient oxygen harvesting. Imagine, then, a spacetime topology optimized not for oxygen, but for information! The implications for data storage are staggering.
Yes, this may sound like the ramblings of a YouTube enthusiast, but mark my words: within a decade, this "R-Field" will be harnessed in devices we carry every day. The future is closer than you think😉
TLDR;
O^🔔({🥨💫}) =
{🧬,🐚…} ⇒ (🔔 + ⚡️) → 🦠
@huwpenson2678
03/14/2025 - 6:27 PMthings are so complicated if you think about them too much
@IsaacLocklear777
03/14/2025 - 6:27 PMI do bear good fruit and what they are trying to do in Switzerland should not be done on the hopes of finding other dimensions when you should already know they are there because God has created those extra spaces in time for him and his angles and evn fallen angels. Be careful what you seek to do with not good Spirit within your heart trust in God he will always provide
@IsaacLocklear777
03/14/2025 - 6:27 PMIam going for physics so I can understand God's creation even more than I know now In Jesus Christ name Amen 🙏🙌
@BarbaraGonzalez-l4v
03/14/2025 - 6:27 PMThomas Anthony Martinez Richard Wilson Brian
@xyz-mt6iw
03/14/2025 - 6:27 PMBut what are strings made of? If it is made of energy then what is energy made of? Then again energy is itself in the configuration and geometry …so different geometry is different energy…more geometry more energy? Just a fixed amount of geometry so as to not violate conservation of energy principle. Then let it be conservation of geometry principle . Geometry can neither be created nor destroyed->change the statement a bit :the total geometry in any mathematical operation will always have to be constant. But geometry of what? Matter… Then we are suddenly drove out of our own path into finding what matter is made of… But consider a person to be 1 million light years away from us. To that person we would look like dots and ultimately waves making it difficult to understand our position and velocity at the same time. For that person we would be wave. So we are waves in that moment(macrostate or microstate 🤔?) If we become small of the size of electron then we will start our behaviour as electron. So different positions have different behaviour. But again what is position? Space-time, matter, Or a combination of all these and even many unknown things♾️
@garyrecord3022
03/14/2025 - 6:27 PMBut God. Mary Anne
@ricksanchez3106
03/14/2025 - 6:27 PMThis man is a genius. He speaks perfectly. This dude just renued my faith in humanity.. Haha
@Shawnecy
03/14/2025 - 6:27 PMA regular string theorist grifter.
@BetsyWillie-t8f
03/14/2025 - 6:27 PMBrown Joseph Lopez Cynthia Smith Nancy
@pipsantos6278
03/14/2025 - 6:27 PMThe question of chicken or egg for physics is, which came first consciousness or physical. I tend to believe it is consciousness.
@jamesharte9732
03/14/2025 - 6:27 PMEinstein used his head wtf are the doing with a lhc
@lonewolfmtnz
03/14/2025 - 6:27 PMGreen is a moron who failed upward … spectacularly
@doublebass1985
03/14/2025 - 6:27 PMu want the truth of the universe? tell them to go up in space and video record in the radiation spectrum and show it to the public.
@joecartersr
03/14/2025 - 6:27 PMOkay so to watch this romantic video he's good at making it make sense, he'd be a great teacher, but he still leaves me with the question, where did this theory come from? Where's the proof of this theory? I get it he's not trying to sell it to me he's just explaining it. And I have nothing against it, but I need proof. I mean the fact that there's 200 genders is a theory, a ridiculous Looney tune theory but a theory nonetheless…
@Feroxing12
03/14/2025 - 6:27 PMString theory isn't it. there has been zero progress since this video has been shot. maybe it's complete dead end or someone in the future will build something useful from this changing it significantly. it was a nice attempt but it shuld not have lasted 40 years as a mainstream theory taking all research funds and academics postions over this period.
@MATEMATICO1O
03/14/2025 - 6:27 PMTemporal Infraction
Developing a physical theory around the idea of "temporal infraction," where the day still has 24 hours, but the value of these hours decreases, involves a series of assumptions and extrapolations that mix theoretical physics, philosophical concepts, and the subjective perception of time. Let's explore this idea in a structured manner:
1. Definition of Temporal Infraction
Temporal Infraction: would be a condition or phenomenon in which, despite the objective measure of time remaining constant (i.e., a day still has 24 hours), the "quality" or "value" of this time is perceived as diminished. This reduction in the value of time could be quantified in terms of efficiency, subjective perception, or capacity for achievement within a time period.
2. Initial Hypotheses
Temporal Dilution Hypothesis: Propose that there is a dilution of temporal experience, where each unit of time (hour, minute) becomes less "dense" in terms of quality or utility, similar to the concept of entropy in thermodynamics, where the system tends towards a state of greater disorder.
Subjective Compression Hypothesis: Suggest that there is a compression in the subjective perception of time, where the human brain processes time in an accelerated manner, making it seem like less time is available.
3. Mathematical Model
We could model time not just as a linear dimension, but as a function that depends on psychological, social, and even cosmological variables.
If T24 represents the 24 hours of a day, we could introduce a "temporal infraction" factor I(t) that modifies the perception or value of these hours:
T24' = T24 × I(t)
Where I(t) is a decreasing function of time (t), representing the decrease in the perceived value of time as days pass.
4. Physical Interpretation
We can hypothesize that this temporal infraction is caused by external or internal interference: External Causes: A cosmological phenomenon that affects temporal perception, such as a variation in the expansion rate of the universe, which could influence how matter (including human brains) interacts with time.
Internal Causes: A neurological or psychological change that, over time, alters how human beings process the passage of time, similar to how gravity can bend space-time in General Relativity.
5. Experiments and Predictions
To test this theory, we could: Measure the subjective perception of time in different populations over time, observing if there's a tendency for people to feel they have less time as they age or in different seasons of the year.
Investigate if there's a correlation between cosmic or geophysical events and changes in temporal perception.
Develop computational models that simulate how time perception can be affected by psychological and physical factors, adjusting the I(t) factor to predict different scenarios of temporal infraction.
6. Conclusions and Implications
If this theory proved true, it could have profound implications for how we understand time, both in a physical and subjective sense. It could also influence how we organize our lives, from structuring work time to valuing leisure time.
This "Temporal Infraction" theory is an attempt to combine physical concepts with human perception of time, exploring new ways to understand how we experience and value time in our daily lives. Although still purely speculative, it offers an interesting field for future theoretical and experimentalexplorations.
@manishrathi6436
03/14/2025 - 6:27 PM2024, we still cannot prove it.
We don't have enough energy. It is long way to go!
@jakosvacos6532
03/14/2025 - 6:27 PMWhatever i believe in string theory but maybe something protect us to make this thing happen i mean The idea is not bad but we have no idea of the consequences that this could have in our world if ever one of these particles came into contact with one of these dimensions.
@amalkrishna8732
03/14/2025 - 6:27 PMI wasn't interested in string theory when I read the book A brief history of time,it seemed to me as something absurd and as just a hypothesis.But while I was watching this video,it started faintly to get interested in this
@isatousarr7044
03/14/2025 - 6:27 PMString theory proposes that fundamental particles are not point-like but rather one-dimensional "strings" vibrating at different frequencies. It aims to unify all fundamental forces of nature: gravity, electromagnetism, and the nuclear forces into a single framework. The theory often involves additional dimensions beyond the familiar three and incorporates concepts like supersymmetry. While promising, string theory faces challenges due to its complexity and the difficulty of testing its predictions experimentally.
@dougo891
03/14/2025 - 6:27 PMHis talk is the sound of a brilliant mind
@SimonMcGrath-o8jk
03/14/2025 - 6:27 PMIt's like ur tryin to fit a square peg into a round hole to get string theory to work
@joshuabartley656
03/14/2025 - 6:27 PMThose numbers are so precise cause it is a system and that system has been designed and created by God.