I think that part is a little bit outside of my knowledgebase. I’m not quite sure a single node could turn its self into the majority of nodes. There still needs to be communication over the sha-256 software.
I suppose it’s possible, if they were to run multiple OS’s and each one pretend it’s a node.
I’ll have to do some research on this. It’s still hypothetical right now, of course.
On a side note, I do not consider ethereum to be a solid investment, as there is no cap on the total number of coins. It simply can’t retain value if they just keep making more. Recently, they hit over 100 million coins, while bitcoin is only 21 million.
Great thing about currencies is, there’s so many to choose from, need more supply? Print more.
There’s less “money” in the world, you can’t simply print it, not that fast, and I mean precious metals
off-topic a bit, but I am invested in precious metals like gold and silver. However, the problem I see on the horizon is if the idea to mine asteroids takes off, literally and figuratively, the scarcity of said metals will suddenly disappear. Too heavy an investment will see losses.
That is potentially within the next 20 years.
Also, technically, there is at least 1 lab equipped to turn lead into gold. They make it prohibitively expensive on purpose, but in really is fairly cheap. If someone were properly motivated, they could literally make as much gold as they want.
Whatever you do, don’t touch diamonds lol they’re not scarce, also controlled and marketing
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Exactly what they would do. The constraint on it right now is the fact that it isn’t possible to get enough CPU power to do the calculations. But if you get a quantum bitcoin miner say goodbye to the integrity of the blockchain. And then bitcoin becomes worthless overnight.
I mean, by that mentality it can be done right now.
You just have to invest in enough computers and/or servers to create a massive amount of nodes. With the current value of bitcoin as a whole, there is financial incentive to do so. Not to mention the value of all the other cryptocurrencies available.
However, it doesn’t appear anyone is interested in doing so.
No it can’t. This is what I keep trying to get you to understand, the bitcoin algorithm is designed to require too many CPU cycles per blockchain increment for this to be possible. It’s not “spend a lot of money” levels of impossible, it’s “if you own every single CPU ever produced for all of human history you still won’t even be close to having enough”.
It’s just like other cryptography situations. For example, the disk encryption on an average PC: it is mathematically possible to brute force the keys, but it would take the NSA’s best server farm running for billions of years to run through all of the possible combinations. For that sort of application it’s trivially easy to use any arbitrary key length and ensure that the brute force attack can not succeed before the heat death of the universe. But quantum computing changes all of that by attacking the math from a completely different direction. Math problems that take billions of years to solve with conventional CPUs can be solved almost instantly. And so an encrypted system that is unbreakable currently might be completely defenseless once quantum computing is successfully applied to the task.
Perhaps I wasn’t clear enough.
If (sample server farm) were sufficiently large enough, with many computers and a massive amount of bandwidth, they could use the blockchain information, change it and send it to their overwhelming node capability to verify it.
Even if multiple farms did this in conjunction, it would accomplish the same thing. There is a finite number of computers currently acting as nodes. I don’t know how many, but i’m sure it’s possible to find out once you’re in the network.
After you know how many nodes there are, you simply need to create that many nodes, plus a small amount more.
If you’ve written a program in relation to this that would simultaneously approve the false information, the rest of the nodes wouldn’t have the ability to stop it.
That is the exact same concept of using 1 quantum computer and setting up hundreds of thousands of operating systems, and running the software at the same time. The query goes out to all nodes, your superior number of nodes verifies it, the transaction is approved.
If you’re now saying that wouldn’t work, then your above comments about how easy it would be to bring down also wouldn’t work.
Yes, and the point is that the cost and difficulty of doing this is prohibitively high. This is the difference between “mathematically possible” and “can be executed in the real world”. But a successful quantum bitcoin miner instantly changes the requirements to a single quantum computer and a bit of supporting code.
If you’re now saying that wouldn’t work, then your above comments about how easy it would be to bring down also wouldn’t work.
No, you just don’t get the difference between conventional CPUs and quantum computing when it comes to (certain) cryptography problems. Cryptography attacks that would require spending the entire world GDP on server farms and running them for a billion years can be executed almost instantly by a single quantum computer.
significantly more than a bit of supporting code. We’re talking OS keys for hundreds of thousands, perhaps millions of operating systems. You can’t run the blockchain on trial windows 10. You have to have certain updates, which require validation.
Quantum computers still rely on current hard drives. So, even having a quantum computer operating at ridiculous speeds, you still have limitations on how much data can be transferred and written to the hard drives. We’re talking hundreds of thousands of hard drives. I couldn’t even guess how many hundreds of thousands of gigs of ramm.
The most recent advancement took an equation that would have taken conventional computers approx 10,000 years and turned it into a 3 1/2 minute exercise. That would indicate that even quantum computers will have limitations.
As a node, it would be fantastic, as you would be creating the hashes nearly immediately. As a way to destroy the system, not so much. The same problems you’re expressing about using current computers would still exist. The computing power would be unparalleled, but in every other aspect it would function like a normal server.
I think you are vastly overestimating the difficulty of this. Remember, you don’t need to duplicate the blockchain client, you just need to send the correct outgoing network traffic with the appropriate data. The difficulty is in having the CPU capacity to actually do the math, not in creating a bunch of clients.
I think to be a node, you do have a validated client, which requires a validated operating system.
I could be wrong, but I doubt it.
You could potentially have multiple operating systems and clients per hard drive, and normal blade servers typically have 128 gb ramm each, plus the required gpu. I suppose the gpu could technically be handled by the quantum computer.
Though I’m not certain of that, as the quantum computer doesn’t technically operate in the same fashion as normal processors.
The limitations wouldn’t be from the processor, at this point. It would be all other hardware. That’s why I think they’d make incredible nodes, but not necessarily lend any power to fabricating false transactions.
On the other hand, EvE would benefit greatly from quantum computing. No more tidi!
Faking validation would be trivially easy. All you have to do is make a new version of the client that reports itself as validated. There’s just no point in doing it right now because you can’t fake the CPU cycles required to actually do the math.
On the other hand, EvE would benefit greatly from quantum computing. No more tidi!
Incredibly unlikely. Quantum computing is not “normal CPU but faster”, it only applies to a specific set of math problems (many of which are related to cryptography). Outside of those specialized areas quantum computing is useless.
Agreed. It’s not normal cpu but faster, but I am semi confident it could handle massive input and produce massive output with ease.
I know, right now they work by taking equations and running them several thousand times to find the most common answer and reporting it as the correct answer.
I think as it evolves, it will handle processes normal cpus handle, but at lightning speeds. Again, I could be wrong. I’ve read over a dozen articles on the subject, but I’m not sure any of them indicate the desire to be able to functionally process static input.
I imagine that as they’re built more often, and become cheaper to maintain, other groups will work on adapting them. Certainly vr companies will try.
You are. Outside of very specific math problems quantum computing is useless.
For now
Forever. Because, like I said, quantum computing is not just “normal CPU but faster”. It’s a specific form of math that is only relevant to a small subset of problems. If the task you’re dealing with is not one of those problems then quantum computing can’t be applied. And it’s unlikely that CCP’s servers are one of those problems.
It just happens to be the case that cryptography math is one of those problems where quantum computing does apply. Change the math and maybe it doesn’t anymore.
While I do foresee asteroid mining in the near future, I certainly wouldn’t see mining them for precious metals being viable any time soon. As for turning Pb into Au, really, it’s not April 1.