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    Author Topic: Criticism of Bitcoin  (Read 2640 times)
    minerva (OP)
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    April 12, 2013, 06:18:36 AM
    Last edit: April 12, 2013, 06:57:19 AM by minerva
     #1

    I have little programming knowledge. But I am a student of economics, I'm not sure how many of these criticisms have been made before.

    I'm not sure, but would it be possible for the number of honest transactions to exceed available bandwidth for most computers (if they engaged in checking as well).

    Restricting the total amount of bitcoins that can be mined will become a bottleneck. Supposedly the Winklevossi own 1% of the current bitcoin supply. This doesn't harm it's use as a medium of exchange (except for menu costs of tracking the Mt. Gox exchange rate), but it won't replace the dollar as a medium of transaction.

    This is bad for a few reasons.

    One, it incentives large mining pools. Small mining operations that generate 2 GHash/s may never generate a bitcoin block, thus they must use pools to net a few bitcoins per week. This probably is a minor issue, as long as the major pools are trustable.

    Two, it will simply mean that Bitcoins will be become a means of money laundering, particularly since 90% of bitcoins will be sat upon, and the remaining 10% to be used for whatever purpose. Every so often, there will price bubbles caused by a real world event. Those bubbles will pop because maybe 2% of that 90% will cash out (cash in?). If the value of bitcoin continually increases, the portion of bitcoins that will remain out of circulation will increase, only to decrease slightly whenever a bubble bursts. It's entirely possible that there will be a huge crash at some future point, because there is no possible tracking of the number of bitcoins out of circulation (to my knowledge). Current statistics only show (1) the number of bitcoins generated, (2) the number of bitcoins exchanged. Nothing on the number of bitcoins actually in circulation, or the velocity of the bitcoins in circulation. It is possible the velocity of what few bitcoins are in circulation are very high due to satoshi dice.

    Three, if Bitcoins become primarily use as a form of money laundering, a government can and will be able to ban bitcoins through some method. This is not out of some power grab, but because the majority of citizens believe people should not take drugs such as heroin. While it is possible to create an alternate internet using your phone line, this would shut down bitcoins for all intents and purposes. Fortunately, it appears as if most transactions involve Satoshi dice, although it's possible drug dealers use multiple accounts to reduce their "popularity."

    Annendum, if bitcoins do have one final crash as the money supply triples or decuples as people unload their stocks of bitcoins,  prices will be permanently lower. Assuming if most merchants don't peg their prices to major exchanges (ignoring any outlier results from an exchange), they would go broke if they don't adjust their prices fast enough before people start making enough orders to well, bankrupt them (assuming their suppliers and employees don't take bitcoins). This is because the price of bitcoins inflated faster then they could react.

    Ideally in my opinion, a better bitcoin (cryptodollar?) would set the number of bitcoins per block based not on a preset formula restricting the total money supply at some future date, but by a formula that would exponentially decrease the return of cryptodollars generated per day based upon mining. Something like (hashes/(10^6)*2^(years since creation))^.5 [1]. While the inventor of bitcoin wanted to reward early adopters, like I said, the current system has perverse incentives that prevent using bitcoin like an actual currency. I would prefer a block generation method using diseconomies of scale, but another person could come up with a better method. Hash difficulty should be high enough to prevent hyperinflation, but not too low to prevent deflation.


    Unfortunately, you cannot easily conduct trial and error test runs for what the ideal formula is, unless you are immortal and own a time machine.


    But it is also too late to see anything created based on my proposal until bitcoin collapses in one final panic. Bitcoin is the household name for cryptocurrencies at the moment, and names do carry inertia. A major institution/government would need to back an any new cryptocurrency for the cryptocurrency to displace bitcoin.

    1. The formula is hashes generated in the current time period, divided by one million, multiplied 2 times the years since creation, to the half power (or the whole formula is square rooted). Basically, ceteris paribus (all else being equal), for every doubling of hash production, the total amount of cryptodollars produced will only increase by 40%. Ceteris paribus, for every year after adoption, the total amount of cryptodollars produced will halve. For example, multiplying hash production by 55,000,000 will only multiply cryptodollar production by 7,416. Thus exponentially less hashes will be used. This would also curtail the effects of Moore's laws.


    To a certain degree, this is draft, so I might add more to it later.

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