Quantum Computing – The World of the Future – Extra History – #6



and so here we are at the end with one last question how will quantum computing change our lives if our desktops and our phones are not going to be quantum machines any time soon what will the quantum revolution mean to us richard fineman once said you can't truly model a quantum universe on a non quantum machine and the ramifications of that are profound optimists posit that quantum computing will revolutionize everything from engineering to medicine consider the field of chemistry if we could model things more accurately at the molecular and quantum level we could better simulate how chemicals interact with the human body we could better understand how the medicines we take get distributed at the lowest level we could remove the veil from neurochemical interactions and come to a better grasp on how the complex chemistry of the brain really works or we could combine quantum computing with earth sciences and agronomy over 1% of the world's total energy is used just to produce fertilizer every year this is because most of it is made through a complex and inefficient process that we haven't really been able to improve on in the last hundred years but with quantum computing we might be able to find a much more efficient catalyst and save the world literally millions of tons of natural gas every year and along those lines if we want to talk about the environment right now we don't have a really good catalyst for simply capturing carbon out of the air when people talk about carbon capture and using it to lower the amounts of co2 in our atmosphere right now they're basically only talking about doing it with bulky systems at power plants themselves if we could use quantum chemistry and quantum computing to help find a way to do this in the ambient environment it would be a major step forward towards solving our co2 build-up crisis or in the material sciences realm one of the greatest quests of the 21st century is to create a superconductor that doesn't require serious sub-zero temperatures to action superconduct if this is possible it will require an exploration of materials at the quantum level something quantum computers will be far more suited to handle than today's machines now more immediate realistic things that quantum computers will provide us our advances in areas like machine learning and data handling many of you have probably heard of Mario it was an attempt to have a computer learn how to play Super Mario World simply by telling it that the further right it got the better it was doing and then just leaving it alone and letting it play each time through it would just press some buttons and see how far to the right it got less successful attempts were discarded and more successful button presses were integrated into its next run eventually it learned how to beat levels in Super Mario World that basically is machine learning but instead of running the first level of Mario a ton of times most of the time modern computers are fed gigantic sets of data told what success looks like and then set about trying to learn from any of the success cases they find within the realm of data they've been given and eventually if all goes well they produce algorithms that should help us create or predict future success city planning cancer metastasizing movements of the stock market all of these are problems that we might be able to crack with machine learning and heck we might be able to build cities that avoid getting major traffic jams predict much more accurately when a patient's cancer is going to spread or see a likely stock market crash far enough in advance to mitigate it if we could really sort through compare and analyze the data we have and quantum computers are far better at this than the binary computers we have today sorry guys but quantum computing doesn't come without its dangers I mean just consider security encryption right now most of our encryption from our email encryption to our private social media data to our Amazon shopping all of that security hinges on one straightforward idea they all depend on how difficult it is for modern computers to factor the product of two enormous prime numbers the staggering computational requirements of that task are what make modern encryption secure but quantum computing by its very nature makes that impossible problem soluble quantum algorithms ability to assess entire ranges of possibility at once rather than having to check each possible solution individually changes everything and I'm not saying the unbreakable cryptography of today will become child's play but it sure won't be impossible anymore modern encryption won't truly be secure once quantum computing becomes a reality which will expose our data to a whole new wave of security threats allowing governments to spy more efficiently not only on each other but on us and forcing us to rework how we do some of today's most routine internet-based tasks of course at the same time it also opens up new possibilities for improving encryption creating a whole new field of quantum cryptography which could potentially allow for new approaches and enable brilliant minds to fundamentally change how we think about security in the modern age quantum computing also presents a massive threat to crypto currencies like Bitcoin most of today's crypto currencies depend on a security protocol that could easily be overcome by quantum machines and even if quantum computers weren't used to actually overcome the systems that keep cryptocurrency secure they could be used to mine cryptocurrency far faster than the fastest computers set to the task today potentially flooding the market and dramatically tanking the currency's value so thanks to those theories that Einstein and Bohr debated not a hundred years ago we will soon have safer and faster air travel with routes built to make it easier for humanity to connect across the globe we'll be able to detect cancer sooner through machine learning and solve even more complex problems of protein folding and DNA interactions to create yet more effective drugs we'll be able to better forecast the weather preventing deaths from flash floods and freak storms and we will be able to better anticipate market crashes and potentially prevent the loss of hundred of thousands of jobs we will even be able to better understand the stars as quantum machines help us sort through the enormous pile of data our modern telescopes provide yet at the same time the quantum revolution may fatally wound our nascent crypto currencies and create a new battleground for cybersecurity potentially putting everything for a military hardware to eBay purchases at risk but all of these ideas are in their infancy right now in universities and laboratories across the globe people are building the algorithms that will make these things possible because to take advantage of the potential of quantum computing we have to think with quantum mechanics we have to build whole new algorithms to tease out answers from the quantum superpositions or the space of possibility of our qubits and even for problems we've already addressed through traditional means we will have to find new ways to address them ways that involve realigning our thinking and approaching computer science in a way that most engineers out there haven't even begun thinking in so will quantum computing revolutionized the world maybe that's largely on us can we learn to think in this way that was once so disturbing so counterintuitive even to Einstein can we make the theoretical a reality and then build off that reality can we work with abstractions so complex that even the greatest minds couldn't agree on what exactly they meant and if we can do all that can we do it in a way that's positive for Humanity can we do it in a way that doesn't simply enable governments to more closely monitor us or allow advertisers to better target us with their ads I don't know all I can say after having wrestled with this for so many weeks is that the potential is there and that makes this a very exciting time because knowing the potential exists one simple question remains that's right Zoe we seize it [Applause]

21 Comments

  1. Sem Rozema said:

    3:39 hello pi

    June 26, 2019
    Reply
  2. Justice Ben-Ezra said:

    Portal 3: Thinking with quantum.

    June 26, 2019
    Reply
  3. BlackAngel said:

    I can't tell you how many times I've watched this and every time I feel odly insiped to be a part of the amazing progression of the human race..

    June 26, 2019
    Reply
  4. singingstranger said:

    Another issue with our current method of machine teaching is of course the extreme bias of data that we feed the computer to produce algorithms. From minor, even at times silly results (an algorithm that is supposed to tell a person's sex just by their eyes was actually just trained to look for make up) to dangerous outcomes (racist bias in software that pins PoC and racially profiles them), many things are possible just because of the inherent bias in data, making our algorithms sometimes unusable or at least deeply flawed.

    June 26, 2019
    Reply
  5. Polar Vortex said:

    Like any tool, it all depends on who can get it and what they’ll use it for.

    June 26, 2019
    Reply
  6. J miktutt said:

    6:10 or make the blockchain system more eco-friendly by reducing cost/power consumption? Maybe it wouldn't work like that because the whole idea is based on average difficulty amongst clients?
    Edit: 06:56 and bummer. I'd delete the comment, but….. Doesn't seem right.

    June 26, 2019
    Reply
  7. Kirby Maylish said:

    As far as that last question about quantum security goes, shouldn't we ditch passwords? That seems like the most logical solution. Make your password all possible passwords in the universe (or more realistically all accessable information), and then make only one probability lead to the resulting data that is desired, which could also be everything(or again all accessable information). Don't hide the answers people want to prey on, give them everything and tell a computer everything is possible. Only you will know the truth, but that isn't a property of the computers that are trying to figure this out. I could also be completely wrong about this. (Haha funny quantum joke.)

    Edit: I also may or may not like my own comments to get discussions rolling along.

    June 26, 2019
    Reply
  8. Michael Hughes said:

    I know it’s late but… What about the experiment of Aether with A. Mickelson and E. Motley

    June 26, 2019
    Reply
  9. Iam Legend said:

    Type 1 civilization here I come

    June 26, 2019
    Reply
  10. DIMITRIS DASKALAKIS said:

    hello there you guys big fan of your videos could you plz do a series of videos about physics from the very begging ( from the aristotle era) until today ? pretty plz

    June 26, 2019
    Reply
  11. Vingold The Great said:

    My head hurts

    June 26, 2019
    Reply
  12. Mureithi Kivuti said:

    Fuck this shit.
    I becoming a wizard

    June 26, 2019
    Reply
  13. Rolatii said:

    Gosh. Quantum computing might disrupt or even destroy crypto currency.

    That would be tragic.

    June 26, 2019
    Reply
  14. Robby Frith said:

    moar science just try not to exaggerate ze possibilities

    June 26, 2019
    Reply
  15. Krishna Batabyal On KSB GAMING said:

    I'm just waiting for a computer to persuade my mom to let my play 1 more hour rather than study 3 more hours… :/

    June 26, 2019
    Reply
  16. bumble yeti said:

    Such good stuff!!! You ROCK!!! 🎸🎸🎸

    June 26, 2019
    Reply
  17. REDandBLUEandORANGE said:

    its ok cryptocurrency is dead

    June 26, 2019
    Reply
  18. REDandBLUEandORANGE said:

    dude that co2 thing can be fixed by planting trees
    then citing those trees down
    AND NOT LETING THEM DECOMPOSE

    June 26, 2019
    Reply
  19. Najib Zaoui said:

    Quantum algorithmic trading = GOLD
    Global warming is a scam.

    June 26, 2019
    Reply
  20. Tijs Maas said:

    Nice series on qc! The impact of QC on cryptocurrencies is being overestimated.

    QC mining is not faster. Mining uses a hashing function, which is irreversible, even with postquantum cryptography.

    Transactions are also quite safe: Use your address once (guidelines), then a quantum signature attack can only be performed after submitting a transaction and before it is added to the next block. (Confirmation)

    While there are already proposals to mitigate this problem, they are currently not relevant, since 1 no such attack is possible in the next decade or so, and 2 it increases the size of the signatures.

    June 26, 2019
    Reply
  21. solal flechelles said:

    I am very disappointed with that serie. You spent 4 episodes explaining the basis of quantum mechanics, which is great, but at no point did you actually explain how quantum computing works.
    It doesn't help that even in the stuff you do explain there's a lot of inaccuracies, but I thought it would get better as you start going into quantum algorithms, stuff that you would have a good grounding in… except you never even discussed them :/

    June 26, 2019
    Reply

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