The MOST under rated KZfaq tech channel.

I recognize some of those!

The cuts to text explanations are surprisingly effective

Lol asrock adding a 26 megahertz overclock over a reference clock of 2600 and calling it an overclock and selling it as an OC model. That’s literally a 1% overclock.

I understood all the words and most of the concepts but at the end I was still like "I have no idea what Wendell just tried to teach me."

I applaud your courage in defying the algorithm to bring your audience this educational content. If the universe is a simulation, then the fact that quantum systems collapse to discrete states makes more sense: it's load shedding. That way you can have interesting non-deterministic effects in your simulation, then when a system has been observed, you erase all parts of the system state which haven't been exposed to rest of the simulation to save memory.

I think I need to watch this about 20 times to even begin to understand this. Wendell continues to impress me with his intellect.

Could we for the next episode, use some of that IBM compute time for their quantum processor and run a solution for the typical traveling salesman problem? Something easy and straight forward just to understand how to apply the code and see results. This is something like the typical "Hello World" exercise. I just hear about all the quantum computer theory but haven't seen any practical examples.

For my money, this is your best explanatory video yet. The writing is clear, the pacing is great, and you do an excellent job of switching between explaining the technology and the needs that it is filling. I look forward to any more of these you do.

I do research in applying quantum simulation to high energy physics and it's awesome to see this channel touch on topics near and dear to my wavefunction. Feel free to get in contact if you want more explanations!

I didn't know about combinatory but when you explained it I thought to my self this is about "is P=NP". I read about this problem when working on an optimisation that I tried to solve in cs class. Then I was chuffed to see the video's conclusion boil down to that same "is P=NP" point.

Ever since I found out about the double slit experiment years back I've had a few attempts to just somewhat understand it, but man, quantum physics is something I could never wrap my brain around. I'd get that feeling of trying to understand something I wasn't supposed to... staring into the abyss only for it to stare back at me and grin... spooky stuff. I will say this though, am sure glad a good chunk of humanity is actually getting the hang of figuring it out. Absolutely mind boggling.

Thanks Autumn for the text explanations! This stuff still boggles my brain 😂

I like the fact that Wendell even tried to explain this topic to the monkeys on the internet . 🐒 I just want a miniature Q-computer as an art piece.

Please continue talking about this stuff! I know there has been a lot of bottle necks for QC - too many calculations and we get pretty much nothing but noise, and I know there are some interesting discussions to be had regarding the type of gates that they use (they are pretty wild). Oh, and I would love to see more In Depth talks about the construction of your kvm switch and other projects. Overall, more level1 videos lol. I love Level1

super position is not 0 and 1 at once, it is between 0 and 1 in as 3 dimension vector (only direction) and 1 if it collapse to up, and 0 when collapse down. Because we can only read in one axies and if vector is not align it would align with probability depending on degree from each value. But calculation can be done as vector operations (only direction)

Funnily enough, that explanation sounds like how the newer AI graphics generation works. It does not create the image. It starts with noise and strips away that noise until it gets to an answer that meets the requirements of the input prompt. Because it starts with just noise, it already has all possible answers. It just has to find it by eliminating all "not " answers.

Thanks for doing this video I find quantum mechanics fascinating and you did as good of a job as anyone explaining it simply.

one of your bets videos and very educational, thanks a ton for this.

The first example of on-screen text unnecessarily complicated what was understandable in the video. Another one was just confusing but I appreciate the editor's effort. I would have preferred that those examples were omitted and "polynomial time vs nondeterministic time," were included instead when you referred to P vs NP. Unexplained acronyms might be my biggest pet peeve. I work for a big company where people often use such abbreviations and when I ask the higher-ups - mostly just to tease them - "what does that stand for?' - they don't even know! It really doesn't matter all that much anyway since I rarely understand your marvelous videos anyway. Hoping to learn a little something new each time, I keep watching.

Nicely done Wendell and Editor Autumn.

Oh man that ASRock graph at the start comparing 2623MHz to 2600MHz did some *heavy* lifting.

Thank you, Editor Autumn! SO HELPFUL for a non-compsci pleb like me to have some low-level plain English translation. THANK YOU!!!

1:48 It's when Antman takes his laptop into the Quantum Realm 😂

really enjoyed seeing you on moore's law podcast the other day!

Odd timing for me, I have my 5th interview today with quantinuum. It's such an amazing field, I'm so excited for the future.

I'm going to take a quantum computing course next week, so ty for this informative introduction!

smbc comic did an amazing job of trying to explain this too. Massively great at explaining why qbits aren't both 0 and 1 and why qbits aren't 0 or 1. As a nearly complete layman, what I got from that comic and your video is that qbits are like having a weighted 100 sided-dice, but you don't know where the weight is or how heavily it will lean towards any die-face and any result of >51 is a 1, any result of

Thank you very much for making this.

A close friend ,a Physicist/Mathematician who has spent much of his career working on CANDU tech for the National Research Council, told me after trying to work with 2 Quantum Compute startups on behalf of the NRC between 2018 and 2022,who are begging the Canadian Gov /Venture Capital groups for more $$,that he started out very enthusiastic and hopeful about it all,but now firmly believes its the latest snake oil,from new Shysters,lots of sizzle,near zero steak. He was privy to more advanced iterations of these machines,1 to 2 'generations' beyond what has been shown on youtube,etc,and is now firmly in the snake oil camp,where I remember back in 2017 to 2019 he was ranting to me about how this would be the biggest thing since gunpowder or indoor plumbing or the 1st integrated circuit of its time.

Never had an idea of how quantum computers work. Thanks for explaining it!

Good video, don't be afraid to dive deep those that can follow will

I would recommend Shtetl optimized but he has changed his tun and I suspect the reason why is that he got new friends at d wave . The main claim of quantum computing is that there are certain problems that traditional high performance computing has a large amount of variation in the most amount of time it takes to solve but that quantum computers supposedly solve these types of problems in a consistent about of time . This means reportedly certain types of computing tasks or problems can be delegated to a quantum computer but high performance computing when optimized to solve these problems is very seldom beaten by any quantum computer and when it is , it is highly suspect

Thank you for this video. I love the idea of quantum computing. I hope that the people working on this will be able to use this for the good of humanity. I wish I was younger and starting my career when I was still 18. This is a field that I would have loved to study and be able to make a career of it.

Very fun video! Nuclear physics PhD here. A few of the things people might be interested in: First, qubits don't have to be just atoms or particles as Wendel said in the video. They can also be constructed out of quasiparticles (see Microsoft Azure's work on topological qubits). Secondly, while a 433 qubit system sounds impressive, its actually quite a bit weaker than it sounds. Turns out that qubits are very sensitive, and if they interact with basically anything, they will de-cohere from the rest of the entangled qubits, breaking the computation. To get around this, quantum computations simulate logical qubits out of sets of physical qubits. So if you have 433 physical qubits, you'd actually do a calculation with, say, 27 logical qubits, if each logical qubit is being simulated by 16 physical qubits - 433/16 ~ 27 (if you're interested, look up quantum error correction). Also, the text suggested that quantum computers "already have the answer" to a problem because of superposition. This is incorrect. The quantum computer can theoretically reach the solution for certain classes of problems faster (in the big-O notation sense, for my programming friends) than classical search, and the way this is done is by constructing problems in such a way that the entangled states of the qubits constructively interfere at the solution, and destructively interfere everywhere else. Qubits are just particles (or quasiparticles), they don't "know" anything, and there's nothing magical about them such that entangled quantum systems just spit out answers to problems like an oracle.

Great explanation... Autumn!

100% saving this video for later. As a sysadmin who happens to be a sci-fi writer, one of my characters is supposed to have a background in this stuff, and having a simple reference like this on standby is definitely going to be helpful. Other than that, quantum physics is always a FUN time (and nobody's gonna get that reference).

Thank you, Autumn!

And the lesson begins. Thank you. All my respect guv

That was pretty intense

Thanks for the video! (i'm a Feynman fan too. he was a pretty smart guy)

From what you describe, it seems that we humans may actually think like a quantum computer. Obviously we can't instantly crunch huge amount of numbers, but we do collapse to an answer very quickly in the same sense.

thanks Wendell

"So what are you using this computational-divination machine for?" "Well, we made this kickass itinerary!"

I'm so so so stupid...yet keep it going Wendell, you're really a cool guy with a great Channel

For a good explanation of this the MIT Online lecture series on Quantum Mechanics a really good basic explanation of how this works in the first 3 classes. If you want more in depth the rest of the course is pretty good as well, even the problem sets are useful.

Quite good video. While you didn't go super in depth on how Quantum Computer works, you did explain potential uses for them.

Touching on how they are programmed would be. Interesting, I think.

Came for the explanation. Subscribed for the PDP-11/70 panel. Having once owned an actual PDP-11/70 that's immediate cool points with me. 😀

I thought he was going to say,"This has been a....trip." Maybe another universe. But great video Wondel & team.

You find me jibbering in the corner trying to wrap my head around quantum computering

Thank you! Cheers from OZ

Thanks 😎🤙🦅

thanks for that a little beyond my comprehension but I think i can get if dove in still great stuff man I'd love to truck around these place with you and the good Doctor lol

thumbnail made me laugh!

please show some simple code that uses q-bits. Perhaps sorting something like dna chains, or decoding some cypher.

I've been interested in that kind of stuff for a while, but the polarisation filter thing is new to me, which - considering and comparing to the double slit experiment - makes sense, but is mind boggling at the same time. So wearing two, in 45 degrees rotated polarized sunglasses in front of a PC monitor (which emits polarized light) would mostly eliminate the "screen goes dark" problem. Interesting.

If nothing else, this video has taught me to be even more worried, than I already was about who will get their hands on this technology, and what they will be using it for. Like A.I..

The GPU’s gonna need that Radiator-Heatsink

My brain hurts. Thanks Wendell.

I wish more youtubers would talk about how a quantum computer is similar but not the same as digital computers, and it cannot replace them, nor would you want to. They are great for probability based computations that would take too long to perform on traditional hardware. That is quite niche, maybe a large niche atm with AI, though. Basically, you entangle your particles into super positions to represent your question, and then 'quantum magic' solves it almost instantly, with a probability returned as a result.

nice video

Man does this sounds like the ultimate fit for Monte Carlo type stocastic simulations.

How many security algorithms commonly used are still not quantum proof?

Quantum mechanics is so wild, it literally defies all common sense but somehow has real practical applications

that pix-elation just has me thinking that you guys are standing around a giant hanging phallus

Regarding optical filters: Wave collapse is sayd to be irreversible, which is kind of a problem since the experiment clearly shows that it's affected multiple times. Think about that for a second...

Next video will be Wendell trying to smash together a ghetto quantum computer and posting the steps on the forum 🤣🤣

the polarization of light explanation assumes light is 'blocked'. if you do away with this assumption (and instead posit that the light is instead shifted into a complex domain), many supposed 'proofs' fall flat.

I like how it seems like Wendell went over this with someone else that didn't know anything about quantum mechanics before making a video and posting here.

What people need to know is that a Quantum Computer uses the properties of quantum mechanics to solve certain problems faster than a classical computer. A classical computer can do any work that a Quantum Computer can but on certain tasks a Quantum Computer is better.

the bloch diagram helps visualize the qubit. Is ibm making aa qubit out of a 2DEG in some exotic semiconductor?

I spend so much of my time watching your stuff going wwhhhattt. Put for some reason I get super position.

Yeah, and that's why we need to invest into algorithms which take quantum computers into account and adopt them NOW, because it's going to be too late, when powerful enough quantum computers arrive. And well, some parts of IT infrastructure need decades to adopt new things, even when under pressure.

While IBM is betting the farm on it, China will just buy the farm. If you still have to verify the results with Standard computers, you gain neither time nor energy. And AFAIK, the Energy consumption in Quantum computing is pretty high.

Do you remember the joke about the computer that had a nightmare? - Good morning Computer! - Good morning Operator! - How are you feeling today Computer? - I feel terrible and I'm tired... - ?!!! - I had a nightmare. - How so? - Well... I was dreaming happy 010110110010101000110101110 etc. and at one point 2 !!! I think the time has come for old computers to have nightmares 🙂

Can you explain a Turbo encabulator next?

What's interesting is that Einstein declared quantum mechanics to be invalid ("God does not play with dice"). Yet, Einstein got his Nobel prize for the photo-electric effect - a quantum mechanical property.

Aw sweet. Man made horrors beyond my comprehension. 😂 I don’t understand a ton of this stuff but I still watched.

I taught binary. Binary is simply a number system with 2 characters, 0 and 1. Decimal is the number system humans are used to using, it has 10 characters (decimal) 0 - 9. In any number system counting is exactly the same. 0 is nothing and you count up from there, or count down if you have negative numbers. In binary since you only have 2 characters, once you counted up to 1, your next count brings that 1 back to a zero and you carry in to the next digit, just like any number system. When you count up to 9, the next count takes that 9 back to a 0 and you carry in to the next digit. I don't know what it is you said with your description, it sounded weird from a number system standpoint. But a computer is doing more than just showing numbers. It has to do calculations, make decisions, etc...... Since modern computers are based on transistor logic, where a transistor is either turned on or off, this gives you two states. So, a computer operates in a binary mode, or binary logic, where a signal is either on or off. This has to do more with what you said. Numbers are numbers one way or another. Registers are used to hold parallel words. A memory address, where an address holds some data. An instruction register, where bits are broken down to determine what the instructions is, arithmetic registers that hold numbers that will be used. There are multiple types of data registers. When you retrieve or write into memory, that data is going to/coming from a register. Since the binary number system has only 2 characters, the digits are powers of 2. In decimal, each digit is a power of 10. the lowest digit is 2 or 10 to the zero, the next digit is 2 or 10 to the first, and so on. And this is the way any number system works. In the Hex number system I have 16 characters, 0 - F, so the first digit is 16 to the zero, next digit is 16 to the first. The reason why Hex is used with computer systems is because it's a multiple of 2. I can group 4 binary digits together to make a single Hex digit. The 4 binary digits will count from 0 - F, then back to zero and a carry goes into the next digit. I do this so I can read a register straight to Hex. You can also use groupings of 3 binary digits to make a single octal digit (8), where in Octal the characters are 1 - 7. It's best not to mix binary math with the fact that a computer is running binary logic. In the end you have a 1 or 0, True or False, High or Low, etc....., but the logic that runs the computer is not numbers, they're control signals. Yes, if you were to look at a rep card for a particular computer it can show you how the instruction register decodes for an instruction based on the value in the register which can be represented by a number, but it isn't really a number; it's a series of 1s and 0s in parallel to make an instruction word.

finally I understand quantum computing

Next ... Bio computers please!

Well this is all fine and dandy but what kind of overclocking headroom is there Wendel? (Running away and hiding)

Oh man, I was working with Quantum Computing as part of a research group during my post-grad studies way back in 2014-2017, investigating Hong-Ou-Mandel effect based qubits. I couldn't have imagined how far the field has come since that time. Folks really need to get onto the post-quantum cryptography field before it's too late; quantum computing makes modern encryption techniques obsolete.

I have both understood and not understood this explanation, but you won't know for sure until you ask me.

You came to Yonkers? Did you raid Micro Center and Nathan's?

Yup… Even with Wendell’s great ability to explain things, quantum mechanics stills makes my brain melt…

I find it highly entertaining that you are talking about Cubits in reference to computers. That was a biblical unit of measure for distance.

Ok it knows the answer. How do you input the questions?

I want more videos into Quantum computing sphere, I knew everything that's present in this video, but it's really nice explanation nevertheless.

In the quantum computing explained video explained me nothing. But that says more about me than quantum computing 🤣

I would rewatch this but then I thought about the 432 bits of situations where I wouldn’t understand it again

God. That PDP looks like it should live on the original Enterprise's conference room table 🥵

I need to go back to school to understand this.

If they are used for home media servers will they make recent movies suck less?

1:19 is that Cassandra from Doctor Who?

I hope that Asrock paid a lot for that giant 1 min ad of fluff

Where is the PDP-11 computer? You only showed the console with a wire running elsewhere?

I watched the entire video, and all I can say is I'm glad I'm not a computer teacher... I still don't have a clue how a qbit works.

Wendel ... if i had a hat I'd take it off to you for explaining this ... So ... the way I get it is it's the computing offspring of the Infinite Improbability Drive and Occam's Razor? Can you play Tetris on it?