Google claims quantum supremacy for computer

Discussion in 'Frontpage news' started by Hilbert Hagedoorn, Oct 24, 2019.

  1. fantaskarsef

    fantaskarsef Ancient Guru

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    Coincidentally, they concluded quantum physics experiments which "reversed" the flow of natural things, as in heat going from something cold to something hot, making the hot thing hotter and the cold colder, implicating that the "arrow of time", and the natural order of cause -> effect could be turned otherwise around, or at least, looked at that way, and all...
     
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  2. tsunami231

    tsunami231 Ancient Guru

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    when do i get quantum computers for personal use? till then irrelevant to be interesting news none the less
     
  3. MonstroMart

    MonstroMart Maha Guru

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    Very dangerous if you decrypt with a quantum computer and encrypt using a normal computer. But let's be honest here the first entities who will buy and own a quantum computer will be the cia, nra, american armies, dod, etc .... they will be extremely expensive at first and only the rich will be able to afford it.

    Also i highly doubt google or whoever develops it will be allowed to sell it to anyone at first. It would be dangerous only if let's say i dunno china develops it first and Trump continues to piss them off. WTF do people think big companies and countries will do with their quantum computer first? They'll re-encrypt everything using qubits and quantum computers power so that a normal quantum computer can't brute force it easily.

    It's not different than what we have now. A super computer in 2019 can decrypt using brute force something that was encrypted 30 years ago. But nobody is using those algorithms anymore for obvious reasons.
     
  4. Fox2232

    Fox2232 Ancient Guru

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    I get that it is hard to understand contemporary statements. But this one was easy.

    For given time and grade of computational use cases, there was very small market.
    Today, in times when computer is base for practically any science, quantum computers can be again used by very few groups across the world considering required knowledge and funds.
     

  5. wavetrex

    wavetrex Maha Guru

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    Encryption this, decryption that, qbit up left right and down, revolutionize computing bla bla....


    So far nothing practical has been achieved with this magic technology. Not-a-thing. It's all just theory and some obscure experiments that don't do anything practical.
    I'll remain 100% skeptic until at least one single actual proven use for quantum computers which is outside theoretical physics.

    Well, I'm wrong.
    What was achieved is burning some tens of millions of $s from governmental research funds.

    I wonder when are they going to pull the plug on all the nonsense ?
     
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  6. JamesSneed

    JamesSneed Maha Guru

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  7. Certainly poses a threat to quantum cryptography (at least in its current iteration)....which one could argue is a useful tech that has emerged from such research.
     
  8. Venix

    Venix Ancient Guru

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    All they really need is an algorithm that will mine the rest of bitcoins in few days :p
     
  9. sverek

    sverek Ancient Guru

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    Deyu tuk aur joobz!
     
  10. barbacot

    barbacot Master Guru

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    Trust me...there will be no practical use at home for them...is like having the money to buy a Ferrari today and using it only to go at the supermarket for groceries...
    On the other hand in research it would be great: some time ago I worked in the nanotechnology field - more precisely ultra hard diamond like new materials using Ti, Si, C, N and we used computer simulation methods in our work to make cost effective solutions. On a very fast high performance computer after today standards it took 2 - 5 days to make a simulation depending of the complexity - imagine having a quantum chip - it would take seconds if not ms.
    Yes, like any other great discovery people will use it for bad things (we discovered "the power of the atom" and we immediately created the A - bomb...) but I think that in the long run - if quantum chips are really possible to create - the benefits for humanity will be immense.
     
    Last edited: Oct 25, 2019

  11. schmidtbag

    schmidtbag Ancient Guru

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    And for his time, he was right. Back then, computers were very limited in functionality, they needed people to double-check the work, and they were unreasonably costly. Computers weren't really a marketable item until they could run without vacuum tubes, handle larger digits, and weren't so delicate.
    There are many other quotes that seem ridiculous but were right for their time. The "640K ought to be enough for anyone" (which BTW, was not said by Bill Gates) was also true for its time. The average person legitimately didn't need any more than that. Back then, PCs were mostly used to write documents and do simple math. Of course once PCs got a GUI and became more than glorified word processors or oversized pocket calculators, that's when 640K quickly became irrelevant.


    I find this statement very narrow-minded. Just because it isn't something you can buy yourself, doesn't mean it isn't relevant or interesting. Should quantum servers succeed, I'm sure life as we know it will change (much in the same way binary computers did). The level of compute power and what can be done with it is indescribable.
    I don't think quantum computers will ever see their way into people's homes. They're functionally too different to obsolete CPUs as we know them. I think it's possible we might get quantum expansion cards, but even then, I don't know what the average person would need such a thing for. And I didn't even get into the logistical issues, like how they're currently very picky about operation conditions.
     
  12. Mufflore

    Mufflore Ancient Guru

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    I see quantum computers getting use as terminal servers for gaming over the internet without a PC.
    Imagine how many users it can service with very high quality gfx, physics etc.
    Could be the death knell for a major section of gaming PCs.
     
  13. schmidtbag

    schmidtbag Ancient Guru

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    I don't think it's particularly difficult or expensive for modern servers to handle games. They don't have to handle anything especially complex, they just have to address a lot of people at the same time. I imagine the server's internal networks are a greater limitation.
    However... I could imagine quantum computers being useful for challenging and self-learning computer players.
     
  14. tsunami231

    tsunami231 Ancient Guru

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    @schmidtbag

    the irrelevant part still stand till they actual have a quantum computer which they do not yet it dont mater, unlike what certain "trumps" are claiming they all been saying this and thought about quantum computer for decade and how they manage to do this and that, but there still isnt one atlest not one publicly acknowledged
     
  15. Mufflore

    Mufflore Ancient Guru

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    I mean single player with high end gfx served.
    Bots would still be required and would likely improve over the PC experience but the game state for each player would be very different and require more independent processing.
    There are servers doing similar but not with high end gfx, limited game selection + amount of users.
    My point is how many users/games a quantum computer could handle to effectively replace a large % of gaming PCs on a subscription basis or to rent the use of.
     

  16. schmidtbag

    schmidtbag Ancient Guru

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    I'm confused... there are several quantum computers publicly acknowledged. D-Wave even has commercially available quantum computers (and Google has been working with D-Wave). Whether or not they are "quantumly supreme" is a different story, but, the point is functioning quantum computers do exist, they're just very limited and their true potential has yet to be achieved.
    EDIT:
    So, it is still very much relevant, in the same way the transistor was. Transistors didn't become microscopic and speedy overnight.
     
    Last edited: Oct 25, 2019
  17. tsunami231

    tsunami231 Ancient Guru

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    are there now when did this happen? either way limited functionality mean it still dont matter. I get the parallel/same time processing is a game changer vs having to do in order.

    But beyond that agree to disagree and leave it at that
     
  18. schmidtbag

    schmidtbag Ancient Guru

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    Yes, these have existed for several years and have been used for real-world work:
    https://en.wikipedia.org/wiki/D-Wave_Systems#Computer_systems
    Granted, those haven't really proved to be better than "conventional" computers (not really worse either) but again, this is all still very early stages. We can't expect "supremacy" yet. Humanity is successfully experimenting with a category of physics we don't even fully understand yet, and in doing so, we're starting to open the doors to a new future. How is that not remarkable and important? If this is irrelevant, what do you make of the moon landing? If you felt that was irrelevant, what's the purpose of anything we do in life if improving, exploring, and expanding doesn't matter? Why settle for adequacy (or mediocrity, in some cases)?
    I'm confused... you said yourself what quantum computers can be a game changer. Your own words say it isn't irrelevant.
    It's one thing if you said "this is irrelevant to me", which is fine; I wouldn't have even replied to that because I don't argue with people's preferences. But to generalize quantum computers as all-around irrelevant is something I have a real hard time wrapping my head around.
     
  19. tsunami231

    tsunami231 Ancient Guru

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    like said parallel processing can be game changer but its still not practical. not from cost stand point or use.
     
  20. schmidtbag

    schmidtbag Ancient Guru

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    Tell that to all the BOINC projects, universities, and major datacenters. Quantum computers could replace mainframes as we know them. We're not there yet, but we're getting there.
     

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