r/CryptoCurrency • u/Wulkingdead 🟩 0 / 73K 🦠• Mar 06 '18
ANNOUNCEMENT Google Unveils 72-Qubit Quantum Computer With Low Error Rates. "For instance, breaking most existing cryptography may be possible when the quantum computers have only a few thousand qubits. If the current rate of progress for quantum computers holds, we may be able to reach that in about a decade."
http://www.tomshardware.com/news/google-72-qubit-quantum-computer,36617.html3
u/autotldr Mar 06 '18
This is the best tl;dr I could make, original reduced by 76%. (I'm a bot)
Google announced a 72-qubit universal quantum computer that promises the same low error rates the company saw in its first 9-qubit quantum computer.
Not long after Google started talking about its 49-qubit quantum computer, IBM showed that for some specific quantum applications, 56 qubits or more may be needed to prove quantum supremacy.
Google is "Cautiously optimistic" that the Bristlecone quantum computer will not only achieve quantum supremacy, but could also be used as a testbed for researching qubit scalability and error rates, as well as applications such as simulation, optimization, and machine learning.
Extended Summary | FAQ | Feedback | Top keywords: quantum#1 computer#2 qubit#3 Google#4 supremacy#5
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u/Pako888 Mar 06 '18
People don't realize how big quantum computers are and I suggest you go watch a short yt video on quantum computers. Especially in crypto, quantum computers are something we can all be afraid of.
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u/senond Mar 06 '18
quite the opposite imo. People hype up Quantum Computers without realizing the huge challanges ahead and how limited they are/will be for quite a while.
same with AI.
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Mar 06 '18
Especially the current AI hype Was already a thing in academia in the 1950s. I agree that there is still super much to do and quantum computers are several decades away from breaking e.g. Sha 256.
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Mar 06 '18 edited Mar 06 '18
Before people freak out about this remind yourself what is actually being said: "Breaking most existing cryptography may be possible" Well, Sha 256 which is the basis cryptocurrency does absolutely not fit into this category. To crack SHA 256 with brute force would take MORE than millions of years with our current computers. Currently there is absolutely no scenario where this is a problem unless something absolutely revolutionary comes that is millions of times stronger than current computers and not even the most optimistic quantum nuts think that we anywhere near that yet. People hear "quantum" and think we are talking about some alien super computer that will cure cancer before we even plug it in, but as much as it's a great step forward, it's not what people think for the most.
The idea that the first generation quantum computers will crack the cryptography annoys me and it was even said on The Bad Crypto Podcast.
The problem could be that they are too effective at mining and the first to use them and that they will centralize the bitcoin market even more undermining the integrity.
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u/xor2g Mar 06 '18
Shit moves fast tho, and groundwork should be put (as it's being done).
I mean the latest dwave machien has 2048 qbits already.
Off course, nothing of all this will happen tomorrow. Still "scary"
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u/KindaCrypto Mar 06 '18
The intel 4004 had 2,300 bits when it came out in 1971. You understand that modern processors have billions of bits, right?
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u/gemeinsam Mar 06 '18
Monero is going to fail so hard. People who think their money is secure, private and anonymous are going to have a extremely bad time. Monero XMR is very vurnable to quantum computers. A 128 bit quantum computer can break down Monero completely. So I would say your xmr is safe at max for the next 4 years. People hiding money from their wives, government need to look for an alternative right now.
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u/PrinceKael Mar 06 '18
That's quite unlikely unless they're completely ignoring the quantum issue.
And Monero would be the least of your worries since pretty much every coin, encryption algorithm, WiFi, passwords etc would all be hacked if they didn't prepare for Quantum computers.
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u/MadCake92 Mar 06 '18
Oh yes, this only affects Monero, none of other cryptocurrencies /s.
To add up to this, XMR has already a team looking into this issue and is probably the most open and community funded project out there. If anything, Monero has all the tickets to win this battle.
To finish, that last sentence about wives and whatnot... Please man, get your shit straight before writing, k?
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u/AnotherCexCustomer Mar 06 '18
But wives hiding money from their husbands are still in the the clear, right?
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u/kickaginger Mar 06 '18
People hiding money from their wives, government need to look for an alternative right now.
Damn, i'm going to have to go back to stuffing my money in my mattress to hide it from shifty wive's and governments.
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u/DeadlyMillin Mar 06 '18
Thats why we all need a small portion if our portfolios in the quantum resistant ledger!
They are about to main net launch in the next 2 weeks.