the flaw is in the mining/difficulty adjustment process/mechanism which makes the Bitcoin actually a heavy inflationary currency, and in some cases even worse than fiat.And also there are other problems.
Now i`m not saying that the fiat currencies are perfect, but surely the flaws of the fiat money has been thought about, and some solutions have been offered, while in Bitcoin i see none.
The main problem with bitcoin is the non-elasticity of the monetary supply, which means that it's monetary base it's capped. 21 million, and no more, which is not a good monetary policy.
I just discovered this thread and wanted to remark on the original point re. elasticity and inflationary/deflationary currencies.
First of all, you've kind of skipped over a very important point which lies at the heart of all this, and that is the concept of "base money". With me not being an economist, I define the concept of "base money" intuitively as being the "last asset in a chain of trust".
For example, lets say your a plumber and you do a plumbing job for me in exchange for my 1975 Fender Blond Stratocaster (it was a luxury bathroom
). At the end of the job, I don't actually give you the strat because your too busy to take it away for now, so you get a signed certificate stating you own it. We've now created a derivative - the certificate - which is backed by the base money of the deal: the strat.
Later, you find yourself in debt to the bank, and the bank (regarding '75 Strat's and my signature as AAA ranked assets) accepts the certificate to pay off the debt.
Now the bank goes to the FSA and gets them to endorse '75 strat' ownership certificates as approved reserve capital, so I can use it to sell mortgages levered off that capital according to the reserve ratio, thereby creating new credit money backed by the future economic activity of its respective mortgage holders.
So here we've created an elastic economy with liquidity which varies according to demand, all from a fixed supply base money system (namely 1 1975 Fender Stratocaster).
I realise it's a fractional reserve credit money system as far as the last step goes, but the principle would be the same, for example, in full reserve gold standard. The only difference is the value of the underlying collateral (i.e. the gold price) would increase as liquidity increased.
This is what would happen in a Bitcoin economy.
Bitcoin is *base money*. It is not backed by anything which is why it's such a powerful monetary medium and store of value. I don't think many people who have thought about this seriously think that in an advanced crypto-economy we would be using base money on a day to day basis. (We do today when we buy a packet of cornflakes with a fiat note, but most of the economy revolves around credit money).
A more realistic scenario for crypto-economy is that as its value grows, it serves as a base for a derivatives market which begins to deliver liquidity into various sectors of the economy. It can still be a full reserve derivative, but liquidity can grow and as it does so the value of the underlying cryptocurrency collateral will grow.
There is already a working model of this type of derivitive - Bitshares and its associated "Bit Assets". This provides an elastic monetary model whereby a limited supply base collateral is used to back an unlimited supply pegged asset which is borrowed into existence just like fiat. The only difference is that it's more than full reserve (200% collateral is required I think to create BitUSD) and margin calls are automatically generated by the blockchain when ratios fall below minimum.
Just a last note on the fiat economy - what serves as base money in the fiat economy ?
I like to look at this in very fundamental terms. Fiat is either backed by past economic activity (or "wealth") or future economic activity. When the world was on the gold standard or Bretton Woods system, gold served as base money. There was nothing backing gold (in the sense that there was nothing to exchange it for - it was the last man standing in the trust chain, equivalent to the Fender Strat above).
Gold was limited supply with an element of annual inflation, just as bitcoin is. Despite that we had an elastic financial system. Banks made loans and the value of the collateral went up to compensate so that there was always enough gold to represent the currency that it backed.
While we were on the gold standard base money could be regarded as being "past wealth". i.e. wealth already created.
AFTER the gold standard, however, base money became more ambiguous. But essentially it involved governments issuing bonds. The bonds then get sold to the commercial banking sector which levers it according to the capital reserve multiplier to create credit money.
Note the difference - here, the base money is *future wealth*. The government is selling the country's future economic activity ("debt" in other words) into the financial system instead of gold. This is where the corruptibility sets in because there is no limit on future wealth whereas there is a limit on past wealth. This brings us to where we are today, with governments inflating their base money supply on an almost permanent basis.
So the conclusion of all this for me is that there is no problem with elasticity as long as we are restricting ourselves to the specific domain of *base money* because a mature financial system has many layers and it isn't the job of the base layer to support elasticity - in fact the contrary, its job is to serve as a fixed capital base which gives integrity to the expanding / contracting liquidity supply that's circulating in the economy.