86 Comments

  • hazonku

    Am I wrong in assuming that he's trying to explain the Heissenburg Uncertainty Principle effects measurement & thus causes infinite outcomes at the quantum level?

  • BillyBawb

    Nonclassical physics is just a scam to try and bring antideterminist creationist nonsense into science. Why do we spend money on physics research? All physics research does is give us new ways to destroy the planet and oppress womena and minorities. We need to spend more money on research for evolutionary biology so we can learn more about ourselves and our flaws so we can hopefully learn to live in peace and to care about each other.

  • AbeChang2

    Because physics is the science upon which biology and chemistry are based, and is the science that is the most interesting.

  • part2themovie

    i was literally trying to create a topology today: physics > chemistry > biology but it seemed that somewhere i needed to make a bigger table.

  • part2themovie

    software engineers are professionals in any field in which they need to create an application. their greatest talent is learning. dumbass. and physics isnt that advanced. sorry.

  • part2themovie

    I'm actually a computer scientist, most engineers have to be computer scientists. IT is something else, more like guys checking your cables and installing Oss. I find it boring and redundant. Electronic engineers make the hardware and software engineers in concert with them create the layers of interface that make up software topology. application programmers then utilize these layers in every field to come out with the software that each has become so reliant upon.

  • Matthew Coole

    Software "engineers" as you call them are not maintainers. They are essentially higher level system designers. Granted a software "engineer" will not do much coding however they perform as important job as coders and the other computer scientists who work on developing individual algorithms, they coordinate the design and implementation of a computer system. Without them there would be almost no complex computer systems, at least not any that work correctly (not that many work right anyway) 🙂

  • DarkTrunksGeorgeSim

    I have a part time job as a programmer and my experience has been all but what you say. Every bit of knowledge helps you do your job better. Software Engineers DO work on problems that require an understanding of CS theory such as algorithm design and analysis. You are generalizing the Job of a systems administrator with that of a programmer. A software Engineer can certainly work in both positions.

  • Michael McGinnis

    At 09:47 into the talk, he shows a slide with the title/subtitle:
    "Quantum Mechanics Formalism"/"Quantum Mechanics Cheat Sheet"

    I can't read it. Anybody know where to find a copy?

  • luckinabox

    If you think about it, its impossible to reach Human-level intelligence because it is impossible to determine if something is actually thinking. The only thing you know that is thinking is yourself.

  • gobberpooper

    what if every basic thought could be defined mathematically/electromagnetically and then a new form of programming and engineering could derive from that

  • TedDGPoulos

    Think of the underlying law of nature. The way of all things.

    Consider its astounding inferences and implications.

    The single, underlying law … of nature! Not merely of physics, chemistry, psychology, biology, etc., but of all known fields of inquiry. The law we can all relate to, identify, understand and apply.

    Ask yourself. What is the underlying law of nature?

    Delight in the question. Have fun in the process of finding the answer firsthand for yourself.

    Google it, as a start.

  • DarkShroom

    i've got me a quantum computer right here, it uses the pauli exclusion principle to affect the condutivity of silicon wafers,

    i'm thinking of putting together some technoballble in order to get a huge physics grant

  • BluesClues

    It's not computer engineering, its all quantum physics. Once you get into Schrodinger cat and Hindenburg uncertainty. you'll start to understand the difficulties and power

  • MrBurstingfoam

    @ericharris666 "Hindenburg uncertainty"? Is that where you can't know both the exact position and the exact velocity of an enormous burning German airship?

  • Puddington

    Google needs to re-upload these videos in HD.

    Not being able to see the equations behind the theory puts a damper on any understanding.

  • ObserversParadox

    @vality1
    A computer is only ever as intelligent as it's creator.
    Humans can think and make judgements, so in the future, it is inevitable that computers will have evolved to this level as well.
    Fascinating stuff.

  • ObserversParadox

    @DasKrabbe Computers can't be more intelligent then humans because we program them to learn in the same way that we ourselves learn as humans. Therefore their 'virtual capacity for thought' will never exceed our own as long as they are programmed by us. If they were programmed by monkeys, then the computer would only be as intelligent as the monkeys mental capacity allows it to be due to the monkeys limited intelligence. This is not proof, but it is my logic, so think about it yourself.

  • SalsaTiger83

    @MrBurstingfoam Probably he mixed up Schrodingers Cat there… you know, where you don't know if the airship has blown up yet or not and you can't look because then it goes boom.

  • ObserversParadox

    @DasKrabbe
    It depends how you define intelligence.
    If intelligence is being able to run through each of chess's possible manoeuvres and calculating the risk factor associated with each move.. then you are right.
    But what you may have missed is that humans can do this also.. just not as fast.
    So if intelligence is the speed at which your brain runs then you are correct. But humans programmed computers to perform all of their functions, so they may be faster, but they only do what we tell them.

  • f

    This guy is definately knowledgeable about Quantum Mechanics, but this presentation is pretty terrible. He's got a million equations on a Powerpoint slide and he explains stuff in such a way that you have basically have to be a physicist to know what's going on. His target audience is suppose to be people without background in quantum physics so he should have boil it down to very simple examples that can relate to in real life.

  • AlephAlephNull

    @fewpeople The problem with quantum mechanics is that nothing in QM has any "real-life" equivalent. Even the best physicists have "wait, what?" days where what they "understand" one day confuses the next. Like Feynman said, until you can explain it to a 10-year-old, you don't understand it, and right now nobody really understands QM in such a deep way. We can do the math, but we can't intuit outcomes.

  • Carl Bernroth

    @AlephAlephNull It's not only due to the counter intuitive nature of quantum mechanics, I've studied it for about a year now and somthing that strikes me is how terrible lecturers can be. I myself know how incredibly hard it is to explain something like this to someone who hasn't studied it. My grandma asked me about a math exam not too long ago and what it actually was about. I didn't get passed the second sentence until she asked "what is algebra?". Explaining this in laymans terms is not easy

  • AlephAlephNull

    @wolvie90 Although I agree explaining to the layman is difficult, the problem is usually when we don't have a deep enough knowledge of the tools we use, for example. An expert in algebra would easily be able to give an explanation that, while not deep, would give your grandma a decent grasp of the concept. QM doesn't have anyone, that I've seen, that can give a layman any idea of what's going on. Hard enough to give understanding to 3rd year phys students.

  • BigMTBrain

    @ObserversParadox – (part 1) "Computers can't be more intelligent then humans", "It depends how you define intelligence." How about if intelligence has to do with awareness of relevant facts in the process of problem solving within a limited amount of time? The recent Jeopardy/Watson challenge (/watch?v=dr7IxQeXr7g) shows that awareness (quick access and assessment of relevant facts) is a great advantage. Speed has A LOT to do with "how intelligent", even among humans, thus TIMED IQ tests..

  • BigMTBrain

    @ObserversParadox – (p2) The IBM Blue Brain project (/watch?v=8iDR8Z-e_GU) is working towards emulating a tiny part of a rat's brain. In the US, a full cat's brain. Still others, the human brain. They are all proceeding on a fundamental/modularity approach where any of the fundamentals or module-level components can be experimented with to create many "intelligence" paradigms. These coupled with quantum computers will be well beyond the awareness and intelligence of total humanity in < 100 yrs.

  • BigMTBrain

    @MrTeaB – A Q computer by itself? No. However, imagine a hybrid (binary/quantum) computer 100 years from now. The conventional (binary) side will be literally HUNDREDS OF THOUSANDS of times faster than today's fastest supercomputer. It alone would whip a Go grandmaster silly. I'll even predict that a conventional computer (at least 100 times today's best) will do so using Chess like algorithms in about 10 to 20 years. In 50 to 100 years, hybrids will be playing games beyond human comprehension.

  • insane3alien

    did me good! Had been studying the basic quantum mechanics and encountered fascinating terms related to quantum computing frequently..the three days of these talks left me better..

  • DoctorFastest

    Contrary to some of the other negative comments, I thought this was pretty good. I didn't follow the details of the algorithms he showed at the end, esp. without being able to see the equations. But I understood the idea of that well enough, and overall I thought he covered the ideas well.

  • okara83

    can you FEEL the difficulty and POWER of HINDENBURG UNCERTAINTY?!??!!?….

    HINDENBURG UNCERTAINTY: THE ONLY CERTAINTY IS THE CERTAINTY OF DISASTER!

  • okara83

    You just don't get it Mr. Foam. it's all about the Hindenburg Uncertainty Principle. It's an extremely esoteric physical phenomena, with it's roots in Combusting German Airboat Theory… It describes a lowest limit for German Blimp Navigation and it includes all the major phenomena, and incorporates new and previously incompatible ideas… such as.. Quantized Gravity + weak + strong forces + relativistic revisions of quantum mechanics + the CBF (i.e. Combusting Blimp Force). A complete theory

  • acommunityofhermits

    You could look them up, or just take a course on the subject. It's not like this information isn't available elsewhere.

  • Jake Yu

    So at the end he provides a link to a curated list of literature on Quantum Computing, which I assume all Google employees can access. How are us self learners supposed to access those resources?

  • خزام الحمدان Khazam Alhamdan

    31:35
    Is it precisely true that a quantum gate job is just to evolve the wave function?
    I know it is true. However, how to do such gate in the physics context? or how does a gate works in the physics' sense?

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