[Youtube Review][TED] Making sense of string theory | Brian Greene

(Recommended)Popular Videos : [TED] Making sense of string theory | Brian Greene

 

This time, I will review the popular YouTube videos.

These days, even if it's good to watch on YouTube, sometimes people skip it or don't watch it if it's too long.

When you watch Youtube, do you scroll and read the comments first?

To save your busy time, why don't you check out the fun contents, summary, and empathy comments of popular YouTube videos first and watch YouTube?

(Recommended)Popular Videos : [TED] Making sense of string theory | Brian Greene

https://www.youtube.com/watch?v=YtdE662eY_M

 

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Playtime Comments : [TED] Making sense of string theory | Brian Greene

Gu*******************:

12:22 "If there's a tiny civilization of green people walking about"

He's talking about the Minish OMG

ab************:

This is by far the shortest 19:07 minutes of my life. Why don't you promote this, YouTube?

Ph********:

At 13:00 - possible to find a list of these values somewhere and what they are?

Li**********:

@7:34 “Some of you will fix that one day” - Loved that. We at least have VR now, holograms one day.

H8*********:

17:13 Brian greene of 10 years ago would appreciate the discovery we made 2 weeks ago!

Da******:

18:00 any new news on this theory? because this video is from 2008

Fr**********:

He gave this talk in 2005 (three years before it was posted here). So now (2019), it has been 14 years since he enthused that "it's very exciting that in the next five years or so we may be able to test for the existence of these extra dimension." (16:35) It's amazing how undetectable these supposed extra dimensions are. It's almost like they don't exist. ; )

Sh*****************:

0:16 Goethe said that "Time is a dimension."

 

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Top Comments : [TED] Making sense of string theory | Brian Greene

Ri****************:

he says we will know in 5, 7 , 10 years if he is right from LHC experiments. As of today, ELEVEN years have elapsed.

Lu**********:

The best explanation of string theory ever

OL**:

Showing graphics of something that exists in 10+1 dimensions, and talking about finding out "what these things look like", does that even make sense? From the animations it looks like these 11 dimensions are just things existing in three dimensions but on a really small scale. If they operate in all 11 dimensions I guess they could be "seen" in our three dimensions of space too, but. Can these strings really be visualised? Does it even matter what they look like? I'm confused.

Fr*************:

Super cool guy. Saw him live yesterday at the Starmus festival. Also looks just the same, maybe he is time traveler.

su***************:

He's such a good writer; I had no idea he was also such a good speaker. Best of luck to those guys. Whether you think string theory is a valid enterprise or not, someone has to prove it either way, which is what they're doing. If they're right... what a discovery. If they're wrong... what a discovery.

Da*********:

So much easier to listen to Mr Greene, than actually doing the math... oh my brain hurts...

Da***:

Man, Brian Greene is a Feynman level orator and explainer. I’d take him over Tyson any day

gu*******:

Great speaker and his book "The Elegant Universe" is legendary.

An*******:

I know I'll be dead in the millions of years required to figure all this out and master it, but I'll be pissed if humanity is a cosmic coincidence and are the only intelligent life in this, or any universe.

Dy************************************:

This is an invitation to see an artist theory of the physics of ‘time’ as a physical process. In this theory the extra dimensions of String Theory and parallel universes of Hugh Everett Many worlds interpretation are just future possibilities and opportunities in our one three dimensional Universe of continuous energy exchange or what I like to call continuous creation!

J*:

nobody play with the dials, please :-D

Pr******************:

Every word is of importance. Great speech.

Ma****************:

This man communicates complex concepts with remarkable clarity!

gi**********:

The signature of a good teacher is his/her ability to explain very well what he is teaching. Brian Greene has that signature!

Hi******:

I have always wondered how these people who think about such principles are then able to switch their mind to the mundane such as a grocery list, sorting laundry, and such.

sh*************:

This is a fantastic summary of his book: "The elegant universe"

Yo******:

Very interesting.

No********:

Brian Greene is really an amazing teacher

Or**********:

i just got back from 2177, it was ok

sh***********:

Now it's 10 years after his explanation ! Is any proofs we got from the HLC machine?
And what happens if we apply gravitational waves into string theory?

Li**********:

Thank you , great video.

Jo********:

What if there are bigger dimensions? We might live in one of these small dimensions that is part of a bigger dimension... Just an idea.. Although there is no way we can prove this... at least not the way they want to prove the smaller dimensions

Al***********:

"..i can only show 2 dimensions on the screen, some of you guys will fix that one day.."

He****:

I'm here from the future.. Did you work out this issue in the last 11 years?

st***********:

I'm here because I wanted to learn more about sting theory.

He**********:

Apart from the physics - your English is exceptional good. I would like to see your video-clips used in school in my (Germany) country.

Th**********:

I think Ant-Man actually showed the Calabi-Yau Manifolds in the last "subatomic" scene

la***********:

ever experienced deja-vu? well this is probably one of you in another universe that had already experienced it. food for thought.

v3**:

i like music and i like string theory! ^^

Fe*********:

I always have lucid dreams since I was a kid, but in the last year I have been dreaming with me like in different world or realities... I know I was dreaming but I actually believed I was in a different dimension or I traveled to a different world... it was me, but I could feel everything from touching walls, talking with people, riding a bike, meeting people and going to parties... everything I felt it and seen it like normal, but of course it was not my current life our place I lived, in some I was rich and I wished it was my reality lol in some with perfect loving people, other I was in the middle of a war in the middle of a very modern city... I mean, I always said it was I travelled to a different universe... now I came across to this theme of quantum jumping... Have anyone had these experiences? I am wondering if I was travelling between universes while asleep or quantum jumping? Or what it was...?

Je********:

How life began in the universe:

One little string wanted to be more than just another string. He wanted to be recognized by his kin. He wanted to make the most beautiful music, he wanted to play in the largest of theaters of Broadway. He wanted to be a string on a violin so he could resonate his vibrations into the world and all would know his uniqueness. So he started a club in which many other talented strings joined and together they made molecules. Many types of molecules, even biological molecules! After millenia of dilligent work and concentration they made their first self-replicating molecule: DNA.

The rest of the story is called evolution by natural selection ^^

ja*******:

What gets me (and I've just finished reading The Elegant Universe) is not that physicists have suddenly conjured all these extra dimensions out of nowhere or that they are tiny and tightly wound into Calabi-Yau Manifolds. I can understand that if it's necessary to make the maths work then so be it. Eventually someone will find a way to experimentally test this stuff and the theory will succeed or fail accordingly. No, my issue is that these Calabi-Yau Manifolds with strings wrapped around them (like a yummy date wrapped in bacon) are tucked inside every single particle in the Standard model so there must be uncountable trillions and trillions of them. Yet they only exhibit the precise geometries which allow their associated strings to vibrate in a small number of ways consistent with the particles described by the SM (and the elusive SuSy particles). Why? What I'm trying to say is, if these n-dimensional Calabi-Yau thingies proliferated throughout spacetime in the very first billionths of a second after the Big Bang (and allowed only four dimensions to unfurl to any meaningful size - but that's a whole other issue!), how come there are so few variations in their geometries? And how come these have the distribution they do in our four dimensional Universe?

 

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[TED] We gathered comments about popular videos and looked at them in summary, including play time, and order of popularity.

It's a good video or channel, but if you're sad because it's too long, please leave a YouTube channel or video link and I'll post it on this blog.

 

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