The firm’s senior financial strategist is concerned the advancements in the field of quantum computing will break Bitcoin.

  • technocrit@lemmy.dbzer0.com
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    2 days ago

    Clickbait. It talks about fear of imaginary quantum computing in the headline, while talking about how crypto is resistant to quantum in the actual article.

  • evol@lemmy.today
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    3 days ago

    Crypto seems like alot lower on the list of problems that will happen if encryption no longer works

    • LiveLM@lemmy.zip
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      2 days ago

      Damn right. If encryption no longer works fucking crypto wouldn’t even be in my top 500.

    • pulsewidth@lemmy.world
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      2 days ago

      Businesses/orgs that have smart leaders are already implementing (or have already completed implementing) post-quantum encryption algs/methods into their systems to protect them for when quantum computers and quantum programming mature, making their existing encryption defeatable. For most systems it’s just a matter of a software update and re-encrypting any data.

      Eg: https://arstechnica.com/security/2025/10/why-signals-post-quantum-makeover-is-an-amazing-engineering-achievement/

      This is a problem for public proof-of-work systems that cannot change their encryption, eg: all crypto. Bitcoin cannot change how their coins are encrypted without redesigning and completely rebuilding their public blockchain - it would require concensus from all major bitcoin users and businesses (coin exchanges etc), and could potentially leave any prior-minted bitcoin vulnerable anyway. It will not happen anytime soon - and when it does happen, it may be too late.

      Hence, its actually pretty high on the list of quantum targets, and will likely be attacked as soon as it’s available. Some people might be able to steal a bunch of Bitcoin and exchange it for other new (secure) coins or for cash, and get out before the Bitcoin public realize its been cracked. At which time the Bitcoin price will crash hard and may not recover (depending on what action they take to resolve the issue), so the cautious are getting out asap.

      • technocrit@lemmy.dbzer0.com
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        2 days ago

        Businesses/orgs that have smart leaders are already implementing (or have already completed implementing) post-quantum encryption algs/methods into their systems to protect them for when quantum computers and quantum programming mature,

        Is it actually smart though? Or are these people simply panicking about technology that may never exist?

        And there’s really no technical reason why crypto can’t switch to quantum safe encryption. The better cryptos are already transitioning.

        On the other hand I can easily imagine bitcoin being too dysfunctional to upgrade, but it’s always been a shitcoin relative to more advanced cryptos.

      • evol@lemmy.today
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        2 days ago

        Businesses/orgs that have smart leaders

        So very few

        But agreed its easy for centralized businesses/entities to eventually migrate their stuff into quantum secure systems. Theirs like a 100B for whoever can crack satoshi’s bitcoin keys

  • Honse@lemmy.dbzer0.com
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    3 days ago

    It’s not even close lol why the panic. Did wall street read one of those clickbaity quantum computing research breakthroughs

      • SmoothOperator@lemmy.world
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        2 days ago

        Well, there’s grifters in both camps, but the quantum computing potential was scientifically proven with Shor’s algorithm decades ago, while nobody knows if AI will go anywhere from here.

        So also fundamentally dissimilar.

    • Clent@lemmy.dbzer0.com
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      3 days ago

      It’s also possible for bitcoin to switch algorithms so it would presumably switch to something quantum resistant.

      There are already chat clients that have switched to these types of algorithms, Signal and Apple messages being the most popular ones.

    • a_non_monotonic_function@lemmy.world
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      3 days ago

      Guessing how close or far we are from any given computing breakthrough is bound to be wrong.

      I wouldn’t be shocked if some governments were pouring money into this in secret.

  • Eheran@lemmy.world
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    3 days ago

    So… did they find anything where our current quantum computing is actually faster? Last time I read about this, it boiled down to: If you spend as much time on optimizing the regular calculation, then that is as fast/faster. So no actual, fundamental, benefit to our current state of quantum computing.

    • a_non_monotonic_function@lemmy.world
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      3 days ago

      Prime factorization is one. Another is an asymptotically faster Fourier transform.

      There are several tricks in signal processing that have faster analogs in a quantum implementation. Those cool tricks are the foundation of much more complicated transformations and algorithms.

      There is an entire complexity class you can read up in: Bounded Quantum Polynomial Time (BQP).

    • AnyOldName3@lemmy.world
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      3 days ago

      In theory, quantum computing should be faster once hardware that’s faster is available, and only if the problem you’re trying to solve is in BQP, which isn’t that much of what computers are used for. Progress has been slow, but continuous, so the gap between simulating a quantum computer and actually using one has been shrinking. In October last year, Google’s Willow chip was verified to have achieved quantum advantage, i.e. done something that could be checked externally faster than a classical computer could have. It was only 13,000x faster, and in one specific task, which isn’t really enough to change the world, but ten or twenty years ago it was still thought to be fairly plausible that the physics might not be right and even if the practical problems were solved, they still wouldn’t work.

      Even if quantum computers get ludicrously fast, they’re still not going to be especially common, and they’ll be a piece of specialised equipment, more like an electron microscope than a home PC. Most people just don’t need to do any stuff that’s in BQP, so don’t care if they can do it faster. If you’re a company, university or government body that needs to do one of the very specific things that will be faster, though, they’ll be indispensable.

      Edit: Of particular relevance to the article, at the moment, SHA256, the hashing algorithm underpinning Bitcoin, is considered to be quantum-resistant. Someone might discover some new maths that means a quantum computer can break it faster than a classical computer, but at the moment, even though people have looked into it, there’s no indication that it’s possible, so it should never become easier to break Bitcoin etc. with a quantum computer than a classical one.

      • technocrit@lemmy.dbzer0.com
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        2 days ago

        It was only 13,000x faster, and in one specific task

        Useless, contrived task.

        at the moment, SHA256, the hashing algorithm underpinning Bitcoin, is considered to be quantum-resistant… so it should never become easier to break Bitcoin etc. with a quantum computer than a classical one.

        It’s absolutely wild how grifters will hype articles like this without scientific basis.

      • Eheran@lemmy.world
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        2 days ago

        But that is the thing: was it actually faster or did they just spend 10’000 hours optimizing that side and 0 hours optimizing the normal calculation?

  • hansolo@lemmy.today
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    3 days ago

    “The” advancements?

    Like how it’s still experiencing too many errors to correct for and be useful for much of anything? Those advancements?

    Let’s take our money out of BTC and invest it in fusion power plants and jetpacks and hover boards instead.

    • Clent@lemmy.dbzer0.com
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      3 days ago

      There is already far more being spent on fusion research. It’s way more valuable than even a million dollar bitcoin valuation.

      Jetpacks are a dead end. Automated Passanger drones make more sense at the moment, just need to work out the battery weight ratio. Automation so we don’t all need a pilot license to operate them.

      Hoverboards are antigravity sci-fi. I don’t think anyone is seriously research anything there.

    • technocrit@lemmy.dbzer0.com
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      2 days ago

      Let’s take our money out of BTC and invest it in fusion power plants and jetpacks and hover boards instead war, prisons, genocide, etc.

      Just being realistic.

  • cv_octavio@piefed.ca
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    3 days ago

    LOL. LMAO even. I emember telling my falling-for-it-again friends back 2 years ago that quantum would make their crypto get rekt.

    • IronBird@lemmy.world
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      2 days ago

      …look at the price swings on bitcoin over the last 2 years, if they have any sense at all when it comes to how the Casino works they’ve made absolute bank

      • technocrit@lemmy.dbzer0.com
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        2 days ago

        Are people really too smug to even look at the price charts?

        Bitcoin was at $40k two years ago and like $95k today.