I greatly admire the way Nima's mind works. I would have never been able to fully grasp some of the concepts he discusses, without his unique perspective and creative way of describing properties and concepts, as he so elequantly does. I can relate to him, which maybe the primary reason.

Great talk!

What a stupid comment. How do you know he has a deep insight. Nobody understands quantum mechanics. Unless you've made a break through. Please explain.

@@74wrighty everyone has their own interest and they may be different then answering a video question.

​@@74wrighty I agree, your comment is stupid.

I completely agree, I think was Richard Feynman who once commented somewhat dryly that, "Anyone who thinks they understand Quantum Mechanics doesn't." There's nothing new here at all, nothing that hasn't already been well covered by people like Lee Smolin, (and many others,) in his excellent book, The Trouble with Physics. It's all very well jumping up and down, (and doing the eccentric scientist, "thing," to the hilt,) shouting we're on the verge of a great breakthrough we must be. The problems are real and well understood even by many laymen but neither of the two main approaches String Theory, (untestable by experiment,) and Quantum Loop Gravity seem to be taking things much further or to offer any such breakthrough. The discoveries, (basically just the Higgs boson,) at CERN and LHC have been to say the least, disappointing compared to what we were promised and again non of them seems to take things much if any further in explaining stuff like why there are no left handed Neutrinos, Dark matter and Dark energy and so on and so on.....................................

Hey, I'm sure your mind is more complex and capable then you let on. You've communicated clearly without misspelling several words or jumbling ideas together. Quantum mechanics runs opposite and certainly contrary to our normal human intuition and thus one must develop a new set of senses to properly conceptualize/visualize what's going on. You should look up Leonard Susskind at Standford and his lectures theyve put online. He's really a master teacher of physics and math. I'm completely self educated and, as far as classical physics, have really developed an understanding that is simply not available on these trash popular science videos on KZfaq. "hey, I know! People are too stupid to understand the concept of inflation or a singularity so how about we explain it in terms of pepperoni pizza and ice cream! It'll be completely fuckin wrong but who cares!" - youtube popularizers of science

I'm happy for you but I do not understand anything.

Me too! When you understand things so well, that you can stand in front of an audience of hundreds of people, to deliver such deep topics, with such a casual and natural manner, demonstrates a practical grasp and truly deep understanding, which would be appreciated by anyone with even a vague interest in such concepts.

a real treat.

There aren’t many ways I’d rather spend my Friday evening.

El Shaddai means God Almighty in Hebrew It comes from the Hebrew word shad which means mountain The Arabic word for mountain is sana Sana means thread of summer in Japanese Sana means eternity in Sanskrit The Ancient Jews believed that the earth(cosmos in Greek) was flat Albert Einstein modeled the cosmos with an infinite flat sheet of space/time A black hole is an infinite pit in space/time An infinite mountain in space/time would be an infinite white hole. Dark Energy and Dark Matter can be explained by finite quantum spinning white holes(tachyons) that exist for a few planck instances. Some scientists believe that the big bang was a white hole If God is an infinite white hole than the Father would be the infinite singularity of the white hole, the Son would be the infinite tachyon, and the Holy Spirit would be the infinite tachyonic wave(space) Space does not expand: The cosmos is shrinking while space is constant. This means that the speed of light is shrinking each planck instant in a way that makes it appear constant If the cosmos is shrinking then the density of energy is increasing. This means that all energy will become a black hole because of Schwarzschild radius The beginning of the big bang had 0 entropy which means 100% of the universe was light The universe now has less than 5% light Conclusion the 3 dimensional cosmos is inbetween an infinite infinitely dimensional white hole and an infinite 0 dimensional black hole. (Taegeuk) Good does not need evil to exist Black Holes are not eternal because of Hawking radiation If you don't abide in Jesus Christ you will be deleted You have the choice to be loved everlastingly or to suffer infinite entropy as your last memory that seems forever because 0 time is eternal to a tachyon Please choose the Perfect Agape of God.

Thanks for recommending this!

I appreciate the titles. I’ll check them out.

Frederick J. .....Hey judge and jury, Try to be less critical. These guys can’t all be out of some cookie-cutter. They may have some, or much, of the same information, but they still think and act differently. Different genes; not robots. I’d rather each is able to be himself, rather than worry about whether the critical public is counting hm’s, um’s and ahs.

Yeah , 78 has 13 steps. He has his own personal take. Wonderful lecturer.

I agree.

Haha

+Shirley Mason Good one! But, in our hearts, we know that what is "broken" by the "collider" is energy. Quantum energy is measured how? Space/Time theory does not explain gravity -- that, as mentioned is "dead". We can discuss the "mass" as the total energy of the body; e.g., the Earth or Moon, and measure the gravity when the electric forces are the unit of measure.

Got a good idea about Dark Energy 😎

+Lindsay Forbes Yes, the energy which is transported to the "City" is "Dark", and is only observed when it accomplishes "Work". Ergs, Joules, Watts :) What lights the Milky Way? The combined energy of every single atomic particle of our individual existence, along with the mass of the Earth, our Sun and Solar System; combined with the spiraling energy of our "Local Group", join with all the rest of the star systems that are 'lighted' to show the Dark Energy's passage into, and which lights the center of our galaxy. That is the "Power" and the return "Currents" magnetically stabilize the various systems spiraling in those orbits, with all the rest. Whatever "Chaos" our system encounters has been encountered untold numbers of times in the past, and will be so in the future that we, "Ants" can conceive ...

OK. Let's start with the basics. 1) Let's say that we exist within a 4D environment called Space-Time(ST), and that everything within this ST is constantly on the move with a "c" magnitude of motion. Thus if your direction of travel was set to be across space only, rather than being across both space and time, or across just time, your speed would be measured as being the speed of light, aka "c". 2) We are always confined to the present time, or real time. Thus we are 3D entities. However, we exist within a 4D environment. Laws of physics must also exist outside of our present time, but they would be different from those that we are familiar with, since they would include extension across time. Thus outside of our present time, events would be 4 dimensional. Funny enough, if you analyze the outcome of 1 & 2, you end up with 1) Einstein's Special Relativity phenomena, and 2) You end up with all of the strange quantum mechanics effects.

+NEWKNOWLEDGE Well, first we have to define our terms. Let's start with "Space"? What is its definition, in the absence of matter/mass? If "Space" is curved outside of a mass, then what is "Space" composed of that can be curved by the presence of a mass? How did Einstein form the putative "Space/Time Continuum" in a Universe that was empty of all mass (Ric=0)? What is "Time" as an entity? "Time" is the *measure* of duration -- and "Duration" is a convenient concept of Human kind, and not an object, like a hammer, per se. Besides that, what "Time" can exist in an empty Universe, and no distance or real process to measure seconds, minutes, hours or any measure of reality with only empty space, and no instrument to tell time ... Even in our 3D Universe, there is no "Time", and as you mentioned -- there is only *NOW!* No "4D environment." Funny, about laws-of-physics being "outside" of our *NOW. :)* You must be talking about the *TAO* and that others refer to as *GOD* and about those *LAWS OF OUTSIDE?* Remember Pascal's Wager, and stay safe ...!

Don't waste your time.

It needs to be bigger to go smaller ???? 16:25

Yesss this is more my speed lol

Thanks. I kept worrying that he was going to have a panic attack.

When the volume of a sphere doubles, it's diameter increases by 2^(1/3). When the area of a circle doubles it's circumference increases by 2^(1/2).

dark matter is a big problem I guess

Same! The equation below was a hint but still not enough

Scatter amplitude

In all seriousness, it helps to change the speed setting for this video to .75. Even then, though...

James Lucas ...... and his parents escaped Iran during bad times - physicists also, I believe. I think Nima was born in U.S. Info on internet.

Actually he has an American accent.

An E8 crystal, made of metamaterial i.e. nanodiamond with nitrogen voids, may be able to recreate the pre-Big Bang resonance frequency. I predict that such a crystal may allow us to open up a parallel universe, or trigger a Big Bang like event, or create energy/mass in a controlled way.

I agree. But doesn't positive geometry/amplituhedron most closely map to Anirban Bandyopadhyay 's FIT/GML's fractal logic space. So many similarities.

The triangle was just sad and he wanted you to confort him. :(

electricity does, the electron, which is a particle, but why would anyone, or thing in the natural world move harder, longer, or more complicated than necessary. Unless you count the three guys who change a lightbulb, one to hold the bulb, and two to spin him around.

Doubt it's the mind, its the measurement.

Haha

You don't need to write down a single virtual photon to calculate the Casimir effect.

No.

Since all particles made of mater are made of energy and we don''t really know what energy is; this is NOT a dumb question. I hope some day we find better methods and answers.

Reminds me of the affirmative action dullards warming seats in college class, waiting for their periodic free money checks.... I lived it.

I had a total of 3 questions which i made at the beginning of the lecture just by looking at the title. I knew the content of the lecture expect for the part where he mentioned combinatorics. My other 2 questions were little more technical which i asked him outside the hall & that was about co-relating Quantum spin of a particle to string field theory & how it speculates or explains through feynmann diagram? & can spacetime be discrete? LQG is taking that approach to understand Quantum gravity. I didn't want to go too technical & too over the topic but I wasn't too off. Also i wanted him shed some light on Entropy, Spacetime & QM.

You can't see in the Planck length/space/time. It's called the Planck limit for a reason.

Bud Bradley The problem is, where do you define the crossover between the quantum and gravitational regimes? And How do you describe phenomena that occur at very high energy densities, where both space-time distortions (high energy and quantum mechanics (small scales) are relevant?

+Bud Bradley - Along with +John Smith's argument please note "connections" between what at first appeared to be "different" but were actually deeper dives aka Emergent relationships. Take Newton, it would be all well and good to say leave that as a distinct "system" because it works great for rocket and planet motion, etc. But when it comes to clock variance with gravity Newton can't help you out - but Einstein saw the relationship. Other examples abound in Thermodynamics, and other "systems." Einsteins equations aren't needed to calculate firing cannon balls, but go a long way toward understanding how to keep GPS accurate due to satellite velocity, difference in gravitational attraction, and the fact Earth is not gravitationally homogenous due to differences in density (affects orbit perturbation) we have a viable easy to understand "system." Short cuts are used all the time to design practical items like buildings, cars, radios and TV's, but they won't tell you why Pi is an irrational *non-repeating* number, why in electronics the square root of negative 1 (an otherwise impossible number to arrive at in the course of every day experience) *just works*, or why the natural logarithm *appears* to constrain biological systems. Physicists are driven to understand why the relationship between quantum mechanics, gravity, and time can be defined but not cross correlated. Just like the search for the Higg's Boson - it made a lot sense it should exist, but until it was discovered affected reliance on any particular theory why constituent "particles" had mass and the masses measured. Hope this helps...

The trouble is one rule set describes a completely different universe than the other, and yet they're supposed to describe the same universe. To make it concise: Indeterminism eventually bubbles up (even if one would like to pretend it conveniently stays on its own "layer"). This philosophically undermines the whole system and that's why almost no serious physicists are comfortable with the separation.

No.

I'm assuming he means Aristotle

Thales of Miletus: he basically invented physics, which incidentally is a Greek word: physis = nature.

Usually particle physicists are referring to Democritus as he was the first recorded person to come up with the theory that the world is made from indivisible particles (i.e. particle physics) which he called "atoms".

Chris: but that is a specific theory of physics, not physics as field, Thales is the one to be credited for the development of physics as research of nature in an empirical and non-mythological way. Of course he could have got precursors but they remain unknown. Aristotle himself considered Thales to be "the first philosopher", i.e. what we now call "scientist". His main work was in the fields of geometry and astronomy, conceptualization of causality and ultimate origin (arché). Of course he was a pioneer, so some of his ideas, such as "water" being the principle of it all, sound now weird, loosely magical and obsolete, but so does much of "science" before Descartes. Democritus is two centuries more recent than Thales, who lived around 500 BCE, so he should be more advanced, just as Einstein is compared to Newton.

Thanks Luis, Just to be clear I wasn't arguing for Democritus being a better choice than Thales I was just saying that he is the traditional choice of particle physicists.

John Długosz very similar to his Messenger Lectures from a few years ago. Instead of complaining, pick up some math and try to help move the ball farther down the field!

Max Wall

Yes, I expect, but not with a narrative for general audiences quite this well organized and coherent.

How did you operationally measure that they're complaining? I'm asking since science is, like, totally awesome or whatever and that experiment is the final arbiter of truth or something.

@Bob Trenwith lol snowflake, please don't cry when glib remarks are met with glib remarks. After all, such a response is perfectly conformant with the nature, or if u prefer, the genetic defect, of "free world" speech. Strange that ur not used to it yet, boi, u seem the type perfect for the receiving end

That would require a cohesive thought that can span several hundred pages. It seems his desire for making these speeches is in trying to figure out the purpose of his life's work. I don't think he has a clear path right now and is only slowly coming to grips with the fact that String Theory is, in fact, a dead-end path.

I thought the observable universe was 14 billion light years in radius because we estimate the big bang to have happened 14 billion years ago?

@@N0Xa880iUL Lamestream cosmology is 100% fiction and 0% truth. The only thing it gets right is that the universe is expanding. Beyond that there is no figure or fact they get right.

Oh goodness. I just say hand me a number Duh

@@brendawilliams8062 If you want precise calculations based on scientific principles, instead of metaphysical nonsense (which you get from the mainstream), you have to come to me. The internet mediocrity principle however dictates that you will shrug off my comment as nonsense. Internet IDs could solve that problem.

@@SkyDarmos you are a scientist! Congratulations. I explore pi. I have a numbers theory addiction. I am not a scientist. Thankyou. Your channel looks great.

That was dark John but a necessity for new ideas.