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Originally posted by DaTroof
With credit cards and electronic transfers, things can go wrong. Luckily, there are legal avenues to protect both consumers and banks in the event of hacking/missing data.
With Bitcoin, gimme your money. Oops! We deleted your account balance. Prove otherwise.
Originally posted by TinkerHaus
Bitcoins go into a bitwallet. The thing about having a bitwallet is that it is synchronized with every. single. bitcoin. transaction that ever took place. This provides a ridiculous amount of redundancy. The ledger contains every single transaction and every unlocked block - there are literally hundreds of millions of copies of the ledger around the world.
Yes, you can lose your bitwallet if you're an idiot. If you encrypt and backup you're fine.
In many ways, considering the economic climate of today, having bitcoins in a bitwallet is safer than having money in the bank.
No offense, but the three posts ahead of me don't seem to understand how the bitcoin system works.edit on 5-4-2013 by TinkerHaus because: (no reason given)
And that is what makes bitcoin a dangerous currency to invest in, because the mining aspect of it gives all of the advantage to those who can afford a dwave or real quantum computer.
I'm intrigued by the possibility of a quantum Bitcoin mining platform. Quantum computers have already been theorized to be able to break the underlying mathematics behind hashing algorithms (see Shor's Algorithm.) Could quantum computers mine for Bitcoins at a much higher rate than what is achievable today?
Shor's Algorithm applies to prime factorization, which SHA256 doesn't use.
What you're looking for to crack SHA256 is Grover's Algorithm. Basically under classical models of computation the optimal way to find a matching hash is to simply search through the entire space yielding O(n). Under Quantum Computing the optimal time is O(n^0.5), which means effectively you have halved the key-length.
For SHA256, it effectively becomes SHA128 to a Quantum computer. Now the question remains, can a Quantum search for SHA128 faster than a classical computer search through SHA256?
With our current technology and for the foreseeable future, we still cannot build a Quantum computer that can yet begin to tackle this problem, let alone solve it in a time within our lifespan.
Thus SHA256 is considered "secure enough" for now.
Originally posted by TheBlue
People just need to maintain their faith in Bitcoin, otherwise it will most definitely fail.
And just wondering what anyone thinks would happen to the value of the Bitcoin in a sudden economic collapse?edit on 5-4-2013 by TheBlue because: (no reason given)
In a Ponzi Scheme, the founders persuade investors that they’ll profit. Bitcoin does not make such a guarantee. There is no central entity, just individuals building an economy.
A ponzi scheme is a zero sum game. In a ponzi scheme, early adopters can only profit at the expense of late adopters, and the late adopters always lose. Bitcoin has an expected win-win outcome. Early and present adopters profit from the rise in value as Bitcoins become better understood and in turn demanded by the public at large. All adopters benefit from the usefulness of a reliable and widely-accepted decentralized peer-to-peer currency.
Bitcoin Myths
Yes many of the early miners are probably fairly wealthy now because the mining difficulty was much lower back then when the total network hashing power was much lower. But really it's the same thing with almost anything. The first people to mine gold benefited the most because it was easier to find. The early investors of a successful business benefit the most because shares are much cheaper. The early bird always gets the worm, as they say. But they took the risk and invested their time and money into the mining equipment or the business they invested in. The early adopters always have to take a larger risk and thus they are generally rewarded much better. The early adopters of bitcoin dedicated their computing power to the bitcoin network to help secure it when it was in its most vulnerable stage. It was always open source and completely public, open to anyone who wanted to join the party.
Originally posted by tauristercus
Lets put this bitcoin scheme into perspective, shall we ?
So, here's 2 very simple questions to all you bitcoin enthusiasts and devotees ...
Assuming I'm using an average pc (say, quad core, decent graphics card and 4Gb ram), how long would it take me to "mine" just 1 bitcoin ?
An hour ? ... a day ? ... a week ? ... a month ? ... or longer ?
And would the cost of electricity used be more than the value of the bitcoin obtained ?
Originally posted by DaTroof
With credit cards and electronic transfers, things can go wrong. Luckily, there are legal avenues to protect both consumers and banks in the event of hacking/missing data.
With Bitcoin, gimme your money. Oops! We deleted your account balance. Prove otherwise.
Bitcoins are FAR safer than your made up out of the blue currencies.
Originally posted by flice
Originally posted by TinkerHaus
Bitcoins go into a bitwallet. The thing about having a bitwallet is that it is synchronized with every. single. bitcoin. transaction that ever took place. This provides a ridiculous amount of redundancy. The ledger contains every single transaction and every unlocked block - there are literally hundreds of millions of copies of the ledger around the world.
Yes, you can lose your bitwallet if you're an idiot. If you encrypt and backup you're fine.
In many ways, considering the economic climate of today, having bitcoins in a bitwallet is safer than having money in the bank.
No offense, but the three posts ahead of me don't seem to understand how the bitcoin system works.edit on 5-4-2013 by TinkerHaus because: (no reason given)
No it's not, because since the BTC is not backed up by any real commodity people will at some point realise that a bubble is appearing and lose faith in it, and unlike a so-called "real" currency, Bitcoins are NOT and will never be too big to fail, regardless of the amount of blocks being mined out.edit on 5/4/13 by flice because: (no reason given)
Chrisfishenstein
reply to post by Hecate666
Bitcoins are FAR safer than your made up out of the blue currencies.
So what is Bitcoin again?