The trouble with Bitcoin
(A first version of this page was written in 2015)
    In the 19th century and until the 1930's there were big monetary
    instabilities. Economists found ways to stabilize the money by
    central banks. However the Bitcoin community still never heard about
    that problem and solution, and keeps blindly believing that the
    instability of the value of the bitcoin is just due to the fact it
    is not popular enough and it will naturally become stable by the
    magic of being popular, just because, as usual currencies are now
    relatively stable since a few decades, the very existence of the
    problem remains completely ignored by people who specialize in
    cryptography and have no clue about finance.
    
    So, what is their belief ? That there would exist a stable amount of
    needed currency in circulation.
    This is ridiculously false : whenever someone has a piece of
    currency, there is no reason to keep it, since, at best if we
    assumed its value to be stable, it would just follow the world's
    economic growth, which is lower than the average real interest rate
    one can get by investing this money somewhere, thus having in hand
    no more that piece of currency but something else : some stocks, an
    amount in a bank account which reflects a loan being done to a
    productive company... so, some convention of asset that is not
    itself the object of ownership like a piece of gold would be, but
    that is the ownership of something else, a share of real productive
    thing or company. These more productive forms of value ownership
    have the property that the expected total sum in circulation is
    zero, as positive amounts are the counterpart of some negative
    amounts, usually debts that companies will have to pay to the owners
    of positive amounts.
    Now the expected virtue of a digital economy is that it will provide
    people more fluid means for anyone to immediately exchange any
    unproductive currency they would hold (with low expected real
    interest rates), into productive values (following the market-stable
    real interest rate). In these conditions, the limit of ideally
    needed amount of total value of unproductive currencies in
    circulation, such as bitcoins, is... Zero !
    So, the ideal stable value of a bitcoin, as defined by the ratio of
    the total needed value of currency (ideally zero) by the number of
    units in circulation (some total number more or less determined by
    the bitcoin system), is, logically, zero too. In such conditions,
    expectations of stabilization of value in % per period of time, are
    very unrealistic.
    
    Not only this, but also, consider the question : what do you think
    should happen every time someone creates a new online currency
    working a bit better than the previous one, in a way or another ?
    Some Bitcoin 2.0, working independently of the current Bitcoin. How
    can all the people now owning Bicoins, exchange them all into
    Bitcoins 2.0 ? Of course, the answers is that if all bitcoin owners
    try to exchange their coins into a new currency, they cannot do it
    but will just lose all the value they owned, because, with whom will
    they do that exchange ? nobody will buy them ! You can contrast this
    with the case of central banks which, no matter how ugly it looks to
    think that our money is controlled by central institutions, still
    have the remarkable advantage that, every time we need an update in
    the currency (such as switching from former national currencies into
    euros) they politely accept to collect all the old stuff and provide
    the new one in exchange. Something that won't happen with bitcoin
    since it is so wonderfully decentralized that nobody will be there
    to guarantee that its value does not fall to zero. Apart from this,
    well, experts in computer security are confident, they can guarantee
    to you : Bitcoin is absolutely secure. If you have bitcoins and you
    keep them carefully in your smartphone, if you do not accidentally
    break it nor put it into your bath, you do not forget it in a cloth
    that you put into the washing machine, no pickpocket takes it and it
    is not infected by any virus, then you can be sure, your bitcoins
    will remain yours. Oh yeah.
    
    Now, just think about it : is it really serious to expect the world
    to adopt a system with the remarkable feature that, once widely
    adopted, it will require the whole world economy to collapse every
    time it will need a little update ? 
    
    Not that I like the idea of central control of anything ; actually
    I have my own solution of a decentralized 
online currency (uh, quite decentralized but still some centralized aspect is
still needed for stability).
    But the point is that it needs completely different foundations than
    Bitcoin in order to avoid that trouble. Bitcoin is worthless. It is
    not a step in the right direction. It is a step 1 century backwards.
    We cannot build any serious online currency if trying to keep any
    concept in common with that shit, just like the light bulb was not
    invented by improving the candle.
On the hype about its rise of value
A rise of the market value of bitcoins is no sign of quality. The more 
it rises, the harder it will fall. I strongly suspect that a large part of the 
reasons that made it rise, is that a large number of the coins have actually
been lost, their owner having lost their private keys and/or whatever data
they needed to save to be able to use their coins. Some of the owners may
even be dead, while no heritage system has been considered. This means 
the amount of bitcoins effectively in circulation may be much lower than 
official figures. The value of those lost, is the sum of all amounts which, individually each 
owner might have win if only he didn't lose his data.... but if all of these coins still
really existed they would have been probably sold already, dividing by a 
larger nominal amount (number of units) the total value
of actually circulating bitcoins (something relatively more modest), 
which may more or less be defined by a certain global demand.
Reply to an answer I got about the update problem
(october 2017)
Someone answered: When you say that a simple update will 
collapse the system and will be impossible to replace old coins for new coins, 
that’s false. As seen with Bitcoin Cash, they fork the chain and give every user a 
duplicate of the numbers of coins they have on the new chain.
Maybe all this people are deluded and not smart but they are lots, and they all think 
bitcoin is the future. Even if bitcoin is flawed (the current system also is) I don’t think 
it’s going away unless some new awesome technology appears from nowhere and 
that doesn’t seem to be happening soon. Bitcoin is slowly replacing the current system.
My reply : 
"they fork the chain"
Who ?
The Good Lord Above ?
Remember : Bitcoin is designed in such a way that NOBODY is responsible for it.
One time things may happen to be cared for by some people motivated to
maintain the collective illusion that the principles are good.
But the wind may switch away from this just as well.
His reply:They have names, Roger Ver, Craig Wright, a chinese guy called 
Jihad… they are responsible for Bitcoin Cash, there are other guys on the other side, 
on the 5,5k coin… both groups have their own subreddit and stuff. Both grups are at “war” 
for who’s chain is better, and a 3rd group is going to fork again in november, I think.
Same thing if you buy stocks and that company fails… no one is gonna pay you back. 
The dilemma is to choose the right coin, but I think both coins BTC and BCH will work 
simultaneously. This guys are investing a lot of money to create mining rings, wallets, 
and other softwares.. I’m not an expert but the subject is way deeper than just saying 
“it’s not gonna work” because it’s working, lots of this guys are coming forward as 
kind of responsible for the success of each coin.
My reply: Indeed, lots of guys are coming forward, each responsible to make his
own coin succeed at the expense of all others.... until new guys will
be coming forward, responsible in the same way to make their own brand
new coin succeed at the expense of all previous ones.... Actually they only don't 
want it to fail as long as they did not sell theirs. Oh yeah.
Bitcoin lovers who are responsible to make Bitcoin better.
It's working only as long as no competitor appears that would no more
be a Bitcoin lover... there are already tens of cryptocurrencies whose
value is independent of bitcoin...
You seem to have completely forgotten that a basic meaning of money is
that of a convenient tool of reference to make payments and measure
the value of OTHER THINGS. Most people using money neither think nor
intend to be speculating on the value of a particular currency itself.
Finding all right to encourage them to use a tool and then no more
feel responsible for them if doing so they turn out to loose all what
they have just because you choose to suppose them to agree with a game
that nobody was supposed to know what sense it might be making and
why, since, while the value of a stock is at least supposed to refer
to the real value of a particular business, the heck knows what the
value of bitcoin is supposed to reflect....
It reminds me, in my text 
the phrase "a game where the true conditions of victory has nothing to
do with what it is officially claimed to be".
So that is your Brave New World ?
Bitcoin dictates to waste the Earth's ressources
Long ago when I pointed Bitcoin's instability, people replied that it
was only because of immaturity and limited adoption, so it would
become more stable as time passes, it becomes mature and more widely
adopted
Now that it is supposedly more mature and more widely adopted, see it falling :
from sept.1 to sept. 15; 
from nov 8 to nov 12.
Any better stability than before ? I don't think so.
My facebook post of December 8, 2017
Link
Trying to extrapolate the recent rise of value of Bitcoin into future trends, it 
seems to be on a divergent curve about to reach infinity in finite time, which may 
be as early as the next couple of weeks. But the next value after +infinity is 
logically -infinity, which in logarithmic scale means zero. So, be careful !
Seriously, some time ago I explained some troubles I see with Bitcoin here 
and I did not change my mind since then. (Link to here)
Mining Bitcoins : a proof of work waste hack
What a crazy idea, from an economic viewpoint, that possibility to create coins from nothing, 
imitating the activity of gold mining in the cyberspace... mining gold might be seen as a 
productive activity insofar as gold might have some real value; however if the monetary role 
is its only "value" then there is a big nonsense here... I understand most people don't naturally 
grasp the depth of this nonsense as they have no natural sense of perfect logic and what it 
means for a concept to make sense, logically, so they can't see the problem...
nevertheless the fact is that this whole idea of consuming energy to create cash is a huge 
nonsense. Its main role, in fact, is ideological : it just feels cool, popular, democratic, 
to proclaim that the right to mine coins is granted to anyone.
The result ? Lots of money is spent mining bitcoins, thus converting a real value (energy) into 
an imaginary one that is going to vanish sooner or later anyway. A conversion far from perfect, 
as it is a matter of chance whether this work provides nothing (in most cases) or one bitcoin 
(with very small probabilities). Like if the only way to convert euros into dollars was to buy 
lottery tickets for 1 euro each, with each one chance over a million to win a million dollars. 
Already not as fair and democratic as it initially seemed.
But the ultimate result is even worse: it is no more worth spending one's own (or mutualized) 
energy to mine bitcoins, because of the unfair competition with those who undertake mining 
bitcoins not with an energy they pay themselves but with the energy of others: by creating viruses 
that will infect millions of machines to mine bitcoins for them. Thanks Bitcoin for financially 
promoting the creation of nasty, cpu-consuming viruses !The Blockchain super-toy
One day my sister (who is very bad at computers) notified me of that super-toy which 
she heard about from the news.
My reply to her (translated to English)
Yes of course everyone is talking about it. I'm laughing. A super
very funny and fantastic toy and everyone is wondering: What the heck it will ever be for.
Once upon a time, there was a community of athletes in desperate need of
a feat to accomplish to give themselves a reason for being and to feel
proud of themselves. For years, some of them focused on the great 
ambition of finding a reliable method applicable with moderate effort by any 
good sportsman to achieve to make double back somersault : it would be amazing
wouldn't it ? By dint of perseverance they ended up finding such a method, 
revolutionary. From then on they undertook to develop new sports schools to teach this method to
thousands of new generation sportsmen. As a result the world got overflowed by
thousands of sportsmen to whom the only remaining obsessive concern to which they will 
devote the rest of their life is the research on this vital question: but what the heck
this ability to make a double back somersault can finally be useful for ?
Replace "sportsman" with "programmer" and "method for double back somersault"
by "blockchain ".
So, people continuously think upside down : instead of trying to understand the REAL needs and 
deduce from there the right design of the appropriate solutions, they start by trying to invent some hugely sophisticated 
hyper-specialized kind of "solution" to fictional, theoretical classes of "problems" and then remain in desperate need 
to invent a problem for which these super solutions may be solutions for. I further commented on this kind 
of insanity there:
The science of changing the world : needed skills - Stop 
Mistaking Denialism as Wisdom.
This was written as part of a long exposition on the topic : On humanity's failures to steer itself properly
See also:
A 
discussion
News articles:
Founders of hacked crypto-mining site apologize over Facebook livestream
Steam ends support for bitcoin
Bitcoin mining consumes more energy than 159 countries
A British man says he accidentally threw away over $80 million worth of bitcoin.
Related pages of mine:
 The cult of
          cryptography (incomplete draft)
Why I hate Avast
the biggest security hole of Facebook.