Bitcoin

Nécrologie du Bitcoin : Le Bitcoin est mort… 203 fois

Bitcoin mort

Le Bit­coin est déjà mort… 203 fois. Les déten­teurs de BTC seraient-ils tom­bés sur la tête ?

Mer­ci à 99Bitcoins.com pour nous avoir per­mis de retrou­ver ces dif­fé­rentes cita­tions, et avoir ain­si pu les mettre à la dis­po­si­tion de la com­mu­nau­té fran­co­phone.

Elles seront très pro­chai­ne­ment tra­duites dans leur ensemble.

Cimetière Bitcoin

Morts par année

2017 : 85
2016 : 28
2015 : 39
2014 : 28
2013 : 15
2012 : 1
2011 : 6
2010 : 1

Nécrologie du Bitcoin

2017
01/12/2017

Il existe une faille “fatale” dans les crypto-monnaies, à cause de laquelle elles ne pourront jamais constituer de véritables monnaies » – Business Insider | 10 048,88 $

« Le pro­blème auquel sont confron­tées les cryp­­to-mon­­naies, c’est qu’il leur manque deux carac­té­ris­tiques clés qui font qu’une mon­naie est une mon­naie, » a affir­mé Paul Dono­van. « Une mon­naie doit pou­voir être uti­li­sée comme un moyen d’é­change. Les cryp­­to-mon­­naies ne seront jamais capable de per­mettre cela. Un point c’est tout. » – « Le pro­blème fatal des cryp­­to-mon­­naies, c’est que leur offre ne peut qu’aug­men­ter, » a‑t‑il expli­qué. « Il existe un poten­tiel d’aug­men­ta­tion illi­mi­té pour l’offre des cryp­­to-mon­­naies. »

Source

30/11/2017

Le Bitcoin constitue une illusion qui pourrait conquérir le monde” – The Atlantic | 10 624,75$

Derek Thomp­son : « It has not trans­for­med the eco­no­my of today. While the num­ber of bit­coin tran­sac­tions is gro­wing eve­ry year, it’s nothing close to a mass-mar­­ket consu­mer tech­no­lo­gy, like Google, or Net­flix, or even Pay­Pal. Bit­coin remains cum­ber­some to use (the typi­cal tran­sac­tion can take up to 10 minutes) and the price is extre­me­ly vola­tile. It is, for now, a frank­ly ter­rible cur­ren­cy built on top of a poten­tial trans­for­ma­tive tech­no­lo­gy. »

Source

29/11/2017

Pour Joseph Stiglitz, prix Nobel d’économie, “le Bitcoin devrait être interdit”” – Bloomberg | 9 972,67 $

« Il me semble que cela devrait être ren­du illé­gal, » a expli­qué M. Joesph Sti­glitz à la chaîne de télé­vi­sion Bloom­berg, au cours d’un entre­tien avec Fran­cine Lac­qua et Tom Keen. « Les cryp­­to-mon­­naies n’ont aucune uti­li­té sociale. »

Source

29/11/2017

Voici ce qui pourrait provoquer l’éclatement de la bulle Bitcoin » – Bloomberg | 9 972,67 $

It’s been a puzzle to explain why bitcoin’s gone para­bo­lic. Why would we expect the way down to be any dif­ferent ? The prac­ti­cal appli­ca­tions for cryp­to­cur­ren­cies to faci­li­tate legal com­merce appear ham­pe­red by rela­ti­ve­ly expen­sive tran­sac­tion fees and the high ener­gy costs asso­cia­ted with mining at this junc­ture. On this note, Nobel Prize-win­­ning eco­no­mist Joseph Sti­glitz said that bit­coin “ought to be out­la­wed” because “it doesn’t serve any social­ly use­ful func­tion.” For­mer Fed Chair­man Alan Greens­pan has said that “you have to real­ly stretch your ima­gi­na­tion to infer what the intrin­sic value of bit­coin is,” cal­ling the cryp­to­cur­ren­cy a “bubble.” Per­haps it could end like the dot-com bubble — with inves­tors who have no clue how to value high-flying assets fleeing for the exit en masse.

Source

29/11/2017

La flambée du cours du Bitcoin pourrait continuer – mais ne serait-elle pas plus liées à quelques “dropouts” qu’à des fondamentaux ?” – MarketWatch | 9 096,37 $

Dr. Constan­tin Gurd­giev : « Bit­coin looks like a sure bubble — a disas­ter wai­ting to hap­pen… So bit­coin, then. A bubble or not ? If you ignore the argu­ments that attempt to jus­ti­fy its valua­tions, it looks like one, albeit with dyna­mics that are very hard to inter­pret. If you lis­ten to them, it looks that way even more, with more confi­dence in the argu­ments’ bogus nature. Draw your own final conclu­sions. »

Source

28/11/2017

Hey les idiots – Vous allez perdre tout votre argent à cause du Bitcoin, bande d’idiots” – Splinter | 9 666,23 $

Hamil­ton Nolan : « Le Bit­coin consti­tue fon­da­men­ta­le­ment une escro­que­rie. Être-vous en mesure d’ex­pli­quer ce que c’est ? “Un jar­gon blo­ck­chain qui ne veut stric­te­ment rien dire”. Tout ce dont nous pou­vons être sûrs concer­nant ce “coin” ima­gi­naire, c’est qu’il va vous coû­ter très cher… Et ensuite il y a les idiots – comme vous – qui disent, “Où est-ce que je peux ache­ter du “Bit­coin” pour deve­nir riche, comme tous mes amis “gamers” ? Un homme sage avait décla­ré : “Ce qui monte doit néces­sai­re­ment redes­cendre”, et un autre, encore plus sage, avait dit “Tout ce “truc Bit­coin” est une impos­ture.” Ce n’est pas réel »

Source

27/11/2017

Il est temps de vendre vos Bitcoins. Le succès des crypto-monnaies constitue une bulle. Les banques centrales du monde entier lancent un avertissement” – Financial Express | 9 096,37 $

Les banques cen­trales expliquent que le suc­cès du Bit­coin et des autres cryp­­to-mon­­naies ne consti­tue rien d’autre qu’une bulle […] « Le pro­blème avec le Bit­coin, c’est qu’il pour­rait faci­le­ment pro­vo­quer la chute des banques cen­trales, qui seraient alors accu­sées de ne rien avoir fait pour l’en empê­cher » a expli­qué Ewald Nowot­ny à Reu­ters. […] Pour Hiro­mi Yamao­ka, direc­teur géné­ral du dépar­te­ment des sys­tèmes de paie­ments au sein de la Banque du Japon, même si cette tech­no­lo­gie révo­lu­tionne le sec­teur ban­caire, les mon­naies numé­riques ne rem­pla­ce­ront par l’argent phy­sique. « Il est encore bien trop tôt » a‑t‑il décla­ré.

 

 

Source

27/11/2017

La flambée du cours du Bitcoin pourrait se poursuivre — mais elle ne doit-elle pas plus à des “high-school dropouts” qu’à ses fondamentaux ?” – MarketWatch | 9 096,37 $

Dr. Constan­tin Gurd­giev : « Le Bit­coin est une bulle, c’est cer­tain — un désastre qui est sur le point de se pro­duire[…]

Aucun inves­tis­seur ou ana­lyste sérieux n’a été en mesure de pro­po­ser pour le Bit­coin un modèle de valo­ri­sa­tion basé sur des fon­da­men­taux […]

Alors, le Bit­coin, une bulle ou non ? Si vous igno­rez les argu­ments de ceux qui cherchent à jus­ti­fier son prix, cela res­semble à une bulle, même si sa dyna­mique reste par­ti­cu­liè­re­ment com­plexe à inter­pré­ter. Si vous les écou­tez, cela res­semble encore plus à une bulle […] »

Source

27/11/2017

Panneau de sortie” – Kunstler | 9 096,37 $

James Howard Kunst­ler : « I’m not so san­guine about Bitcoin’s sup­po­sed impre­gna­bi­li­ty, nor about many of its other appea­ling claims. The Mt. Gox affair of 2014 must be for­got­ten now, but back then some shar­pie hacked 850,000 Bit­coins (valued over $450,000,000) out of the exchange, which was pro­ces­sing almost two-thirds of all the Bit­coin trades in the world. Mt. Gox went out of busi­ness. Bit­coin tan­ked and then tra­ded side­ways for three years until (coin­ci­den­tal­ly?) the Gol­den Golem of Great­ness was elec­ted Lea­der of the Free World. Hmmmm…..  If Bit­coin were to keep rising to $1,000,000 per unit, as many inves­tors hope and pray, there wouldn’t be enough elec­tric power in the world to keep it going…. I’m not convin­ced that cryp­­to-cur­­ren­­cies are beyond the clutches of govern­ment, either. Around the world, in their cam­pai­gn to digi­tize all money, there must be a deep inter­est in either hiji­king exis­ting block-chains, or crea­ting offi­cial govern­ment Bit-monies to seal the deal of total control over finan­cial tran­sac­tions they seek…. My per­so­nal take on the phe­no­me­non is that it repre­sents the high point of tech­­no-nar­­cis­­sism — the idea that tech­no­lo­gy is now so magi­cal that it over-rides the laws of phy­sics. That, for me, would be the lou­dest “sell” signal. »

Source

23/11/2017

L’avis du Guardian au sujet des crypto-monnaies : la blockchain des imbéciles” – The Guardian | 8 196,15 $

The cor­res­pon­ding moment for the cryp­to­cur­ren­cy bubble will only be dis­cer­nible in retros­pect, but we have some pret­ty strong can­di­dates alrea­dy…. The notio­nal price of the main cryp­to­cur­ren­cies conti­nues to shoot upwards in a way that makes non­sense of the idea that they have any value as a medium of exchange. Even if they were wide­ly accep­ted by legal mer­chants, it would at the moment be luna­tic to exchange them for any­thing but real money. Bit­coin itself is tra­ding at more than $8,000, more than 10 times its price a year ago, and more than double what it was three months ago. Since it is only wide­ly used as a cur­ren­cy in drug deals or for ran­som pay­ments, there is either a huge boom in cri­mi­nal acti­vi­ties out­side the world of cryp­to­cur­ren­cies, or one within unre­gu­la­ted exchanges where these tokens are tra­ded.

Source

23/11/2017

10 raisons pour lesquelles le Bitcoin va échouer” – ListVerse | 8 196,15 $

Ele­na Stark : « The rea­sons why Bit­coin can­not suc­ceed in the long run go so much dee­per than that. Just like any other spe­cu­la­tive asset, no one real­ly knows what is going to hap­pen in the future. Howe­ver, when one looks at the big pic­ture, it becomes clear that Bit­coin will struggle to sur­vive. »

Source

23/11/2017

La bulle Bitcoin va éclater. Le moment d’un “Bitpound” est arrivé.” – Telegraph | 8 196,15 $

Abhi­shek Para­ju­li : « The constant fluc­tua­tions also mean Bit­coin can­not be used to price goods. And it is worth­less as a medium of exchange as hard­ly anyone accepts it and even when they do, it costs up to $12 per tran­sac­tion and can take hours to clear. … So, hype aside, Bit­coins are lot­te­ry tickets. They have no under­lying uti­li­ty. When the music stops, those left hol­ding them will be bur­ned. »

Source

21/11/2017

Le Bitcoin est mort. Il a été “scindé” en deux” – Twitter | 8 116,13 $

Dea­dal Nix : « Bit­coin is dead. It was split in two. There is bit­coin cash, and bit­coin core/legacy. Deal with it. »

Source

16/11/2017

Voici pourquoi le Bitcoin va emprunter la même route que celle des tulipes” – Financial Review | 7 058,75 $

Elmer Funke Kup­per : “At a more fun­da­men­tal level, we should won­der why Bit­coin exists at all. There is no rea­son. We can alrea­dy trade almost any­thing that is legal over the inter­net and pay for it in various ways. It’s fast, conve­nient, inex­pen­sive and quite safe.” “We can pre­dict the col­lapse of the value of Bit­coin, even when it may rise for a lit­tle while lon­ger. The intro­duc­tion of exchange-tra­­ded futures may signal the start of this pro­cess. Give it a year, maybe less. Bit­coin will become a case stu­dy for eco­no­mics stu­dents, tea­ching them about irra­tio­nal crowd beha­viour.” The back­bone tech­no­lo­gy is real and its value to consu­mers is real. And the­re­fore, it will sur­vive. Bit­coin as a digi­tal “cur­ren­cy”, won’t.

Source

16/11/2017

CIO de la Japan Post Bank : le Bitcoin est une bulle, mais nous ne prévoyons pas de le “shorter”  » – Reuters | 7 058,75 $

Kat­su­no­ri Sago : Bit­coin BTC=BTSP is in a bubble and its fair value should be around $100, or about 99 percent below the cur­rent level, Kat­su­no­ri Sago, chief invest­ment offi­cer of Japan Post Bank (7182.T) said on Thurs­day. Sago noted that blo­ck­chain is a great tech­no­lo­gy and one day bit­coin could become a major means of set­tle­ment. “But that will be years away, pos­si­bly more than a decade — so there’s no need to buy bit­coin now. Since no one knows when the bubble will burst, the best thing to do here is to stay away from it,” he said.

Source

15/11/2017

Le prix du Bitcoin va chuter à zéro, alors que le Bitcoin peine à rester la première des crypto-monnaies” – Seeking Alpha | 6 598,05 $

Ruz­beh Bacha : « Blo­ck­chain has plen­ty of uses out­side cryp­tos (smart contracts embed­ded in Ethe­reum are one such example), but Bit­coin pro­ba­bly won’t be the rei­gning tech­no­lo­gy in the future. »

Source

14/11/2017

L’une des plus grandes banques d’Asie accuse le Bitcoin d’être une “combine à la Ponzi”” – CNBC | 6,354,90 $

We see bit­coin as a bit of a Pon­zi scheme,” David Gled­hill, group chief infor­ma­tion offi­cer and head of group tech­no­lo­gy and ope­ra­tions at DBS, told CNBC on Wed­nes­day. Bit­coin tran­sac­tions are “incre­di­bly expen­sive” and “all the fees are hid­den through the cryp­­to-mecha­­nisms,” he said on the side­lines of the Sin­ga­pore Fin­tech Fes­ti­val. “We don’t think DBS being in that game right now is going to create a com­pe­ti­tive advan­tage for us.

Source

08/11/2017

Pour l’économiste Nouriel Roubini, le Bitcoin constitue une gigantesque bulle spéculative”– Business Insider | 7 143,47 $

…bit­coin and other cryp­to­cur­ren­cies – this is some­thing enti­re­ly dif­ferent. In my opi­nion, there is a gigan­tic spe­cu­la­tive bubble rela­ted to the bit­coin… …Because this is nei­ther a serious method of pay­ment nor a good way to store capi­tal. The bit­coin feeds on itself. There are no fun­da­men­tal rea­sons for its price to reach such levels. What’s more – it is also used by cri­mi­nals, for their sha­dy busi­ness. I think that more and more coun­tries will start to make cryp­to­cur­ren­cy exchanges ille­gal like Chi­na did. New regu­la­tions will be adop­ted. So, this will find its end.

Sourcenotre article.

07/11/2017

Pour le DG de la Société Générale, “le Bitcoin n’a aucun avenir du fait de son caractère anonyme”” – CNBC | $7 274,11 $

Fré­dé­ric Oudéa : “I can’t see a future of this when I see the atten­tion played by all govern­ments and regu­la­tors on anti-money laun­de­ring, on anti-tax eva­sion, on anti-ter­­ro­­rism finan­cing. The ano­ny­mi­ty of the tran­sac­tion is a pro­blem I think which would put pres­sure on bit­coin.”… Oudea said he was “not convin­ced” digi­tal cur­ren­cies would “see any deve­lop­ment.”

Sourcenotre article.

05/11/2017

Le Bitcoin va prendre un chemin identique à celui de toutes les bulles de l’histoire” – Telegraph | 7 265,15 $

Tom Ste­ven­son : « I’m not even ter­ri­bly sure what bit­coin is : a cur­ren­cy or a com­mo­di­ty ? It sounds like the for­mer but it fails to exhi­bit the essen­tial cha­rac­te­ris­tics of money. It can hard­ly be vie­wed as a store of value. That requires at least a modi­cum of sta­bi­li­ty. Unlike the pound in my pocket, howe­ver, I can have no idea what a bit­coin will be worth tomor­row or in a year’s time. That, in turn, reduces its value as a unit of account. Why would ano­ther indi­vi­dual be pre­pa­red to accept my bit­coin for a good or ser­vice when its future value is so uncer­tain ; for the same rea­son, why would I want to spend my vola­tile bit­coin rather than hoard it in the hope of fur­ther appre­cia­tion. So bit­coin is a poor currency…..When it comes to bit­coin, people real­ly are buying it sole­ly because they expect other people to take it off them later for an even higher price. There is no bet­ter defi­ni­tion of the grea­ter fool theo­ry than this…. But I’m pre­pa­red to wait and see. I will not be ris­king my savings on what looks remar­ka­bly like the tulip mania of the 1630s… War­ren Buf­fett also famous­ly war­ned against inves­ting in busi­nesses you can­not unders­tand. If ever there were an invest­ment that fits this des­crip­tion, bit­coin is sur­ely it….  While bit­coin is soa­ring, the grea­ter fools look like those of us refu­sing to fol­low the siren calls of the lat­­ter-day shoe­shine boys. Like Joe Ken­ne­dy, howe­ver, I’m pret­ty relaxed about who will have the last laugh. What goes up like a rocket comes down like a stick. »

Source

02/11/2017

Pour le DG du Crédit Suisse, “le Bitcoin correspond à la définition même d’une bulle”” – Bloomberg | 6 533,72 $

Tid­jane Thaim : “From what we can iden­ti­fy, the only rea­son today to buy or sell bit­coin is to make money, which is the very defi­ni­tion of spe­cu­la­tion and the very defi­ni­tion of a bubble,” he said at a news confe­rence in Zurich Thurs­day. He added that in the his­to­ry of finance, such spe­cu­la­tion has “rare­ly led to a hap­py end.”

Sourcenotre article.

01/11/2017

Théorie du plus idiot – La bulle Bitcoin” – Economist | 6 253,11$

But­ton­wood : People are buying Bit­coin because they expect other people to buy it from them at a higher price ; the defi­ni­tion of the grea­ter fool theo­ry. …When the crash comes, and it can­not be too far away, it will be dra­ma­tic.

Source

24/10/2017

Représentante de l’université de UCLA : le Bitcoin est un schéma de ponzi qui gaspille de l’énergie” – UCLA | $5,912.60

Ivo Welch : « Digi­tal cur­ren­cies, in their cur­rent form, should be pro­hi­bi­ted by law. And not because they are a Pon­zi scheme (which they are), and not because they can help faci­li­tate cri­mi­nal acti­vi­ty (which they do), but because they incur colos­sal social waste…. An impor­tant part of the decep­tion is that mining is mathe­ma­ti­cal­ly gua­ran­teed to become ever more expen­sive, as it gets har­der to mine new bit­coins. That dif­fi­cul­ty creates the false impres­sion that today’s value is a bar­gain com­pa­red to what it will be in the future. Bit­coins are the ulti­mate Pon­zi scheme… »

Source

23/10/2017

Le prince Al-Walid déclare que le Bitcoin va imploser” – CNBC | 5 943,06 $

It just doesn’t make sense. This thing is not regu­la­ted, it’s not under control, it’s not under the super­vi­sion” of any cen­tral bank, Alwa­leed said in an inter­view on CNBC’s “Squawk Box.” “I just don’t believe in this bit­coin thing. I think it’s just going to implode one day. I think this is Enron in the making,” Alwa­leed said.

Source

23/10/2017

Les monnaies virtuelles ne constituent pas de l’argent !” – Linkedin | 5 943,06 $

Jef­frey Smith : « The conclu­sion is that the incen­tive to buy Bit­Coin or any other vir­tual cryp­to­cur­ren­cy is the spe­cu­la­tion that someone else will pay more real world cur­ren­cy (real pur­cha­sing power) at some time in the future. That is the essence of the Grea­ter Fool Theo­ry. »

Source non dis­po­nible

20/10/2017

La technologie tuera le Bitcoin”– Forbes | $5,660.99

Panos Mour­dou­kou­tas : « …That’s bad news for Bit­coin inves­tors, as cen­tral banks and banks can find ways to taper the demand for Bit­coin, taming any fur­ther price gains and occa­sio­nal­ly cru­shing it, as the Chi­nese govern­ment did recent­ly…. A lar­ger sup­ply of cryp­to­cur­ren­cies could even­tual­ly crush Bit­coin prices for good, the way a lar­ger sup­ply of dif­ferent varie­ties of tulips cru­shed tulip prices back in the 17th cen­tu­ry…. »

Source

16/10/2017

Ben Bernanke pense que le BItcoin va échouer (mais il apprécie la technologie blockchain)” – Fortune | 5 640,15 $

Bit­coin is an attempt to replace fiat cur­ren­cy and evade regu­la­tion and govern­ment inter­ven­tion. I don’t think that’s going to be a suc­cess,” …“Even­tual­ly govern­ments will take any action they need to prevent [that].”

Source

16/10/2017

Robert Shiller, un prix Nobel d’économie, affirme que le Bitcoin est juste une mode” – CNBC | 5640,15 $

Robert Schil­ler : « Bit­coin is a fad, just like bime­tal­lism before it, accor­ding to one Nobel Prize-win­­ning eco­no­mist. The obser­va­tion came from Ame­ri­can eco­no­mist Robert Shil­ler, who com­pa­red the cryp­to­cur­ren­cy to the bime­tal­lism fad of the late 19th cen­tu­ry when both gold and sil­ver were accep­ted as legal ten­der. »

Source

15/10/2017

Peter Schiff : Le Bitcoin n’est pas la monnaie de l’avenir” – The Street | 5,688,61 $

Peter Schiff : « I believe it’s not going to suc­ceed in deli­ve­ring the mone­ta­ry uti­li­ty that people [expect],” Schiff said. “I do not think it’s going to be the money of the future. I think it’s the bubble of the present.”  “I think a lot of people unfor­tu­na­te­ly, have attri­bu­ted pro­per­ties to Bit­coin and other cryp­to­cur­ren­cies that do not exist,” he said. “I think that people who are right­ful­ly skep­ti­cal of the dol­lar, the euro, the yen are taking refuge in bit­coin or other cryp­to­cur­ren­cies and they’ve jum­ped from the frying pan into the fire.”

Source

13/10/2017

Jamie Dimon affirme que si vous êtes suffisamment “stupide” pour acheter des Bitcoins, vous en paierez un jour le prix” – CNBC | 5 128,05 $

I could care less about bit­coin…. I don’t per­so­nal­ly unders­tand the value of some­thing that has no actual value. You all can do wha­te­ver you want and I don’t care….. If you’re stu­pid enough to buy it, you’ll pay the price for it one day. I’ve also told people that it can trade at $100,000 before it trades to zero. The only value of bit­coin is what the other guy’ll pay for it. Who cares about bit­coin ? The world economy’s so big, JPMor­gan alone, $6 tril­lion, we move all this money, and bit­coin in total, all these cur­ren­cies, $50 bil­lion dol­lars, maybe a bil­lion dol­lars trades a day. The other thing I’ve always [said]about bit­coin, govern­ments — and this is not a tech­no­lo­gi­cal sta­te­ment — govern­ments are going to crush it one day.”

Source

09/10/2017

Le bulle du Bitcoin va éclater sous la pression des gouvernements” – The Guardian | 4 497,91 $

Ken­neth Rogoff : « My best guess is that in the long run, the tech­no­lo­gy will thrive, but that the price of bit­coin will collapse….it is fol­ly to think that bit­coin will ever be allo­wed to sup­plant cen­­tral-bank-issued money. »

Source

03/10/2017

La SEC américaine commence à “épurer” les crypto-monnaies en s’en prenant à Bittrex” – Stock Emperor | 4 417,98 $

Maciej Wło­darc­zak : « If SEC will fol­low this path and starts tar­ge­ting other US exchanges, it means a unre­co­ve­rable crash for  Bit­coin and Ethe­reum. As Twit­ter user Star­ta­leTV  noted – “all alt are up in the air now”. I would say more : it’s pos­sible end of Bit­coin and other main cryp­tos like Ethe­reum. SEC isn’t wor­king too fast – but if it starts regu­la­tions on wide scale, it will effec­ti­ve­ly kill Bit­coin fad. »

Source

28/09/2017

La fabuleuse envolée du Bitcoin… se terminera par des pleurs” – South China Morning Post | 4,035,36 $

Richard Har­ris : « It is a fea­ture of all bubbles dri­ven by the herd to find that many wise, high pro­file and ana­ly­ti­cal finan­cial obser­vers are their most ardent sup­por­ters. The rest of the crowd are blin­ded by greed or grip­ped by the fear of mis­sing out. So it is with bit­coin. ….The fatal aspect lacking from cryp­to­cur­ren­cies is the backing of a cen­tral bank, which has all of the eco­no­mic, mili­ta­ry and intel­lec­tual resources of a nation to sup­port it. … Cryp­to­cur­ren­cies are going up because they are going up ; they are the Kar­da­shians of the finan­cial world ; famous for being famous. But fame does not last fore­ver, nor do mar­ket manias. Then the very same very wise, high pro­file and ana­ly­ti­cal finan­cial obser­vers will then try to convince us that they were the first to warn us ! »

Source

27/09/2017

Pour le “Loup de Wall Street” Jordan Belfort, le Bitcoin constitue une fraude” – The Street | 3 922,21 $

Jor­dan Bel­fort : « ‘The Wolf of Wall Street’ Jor­dan Bel­fort thinks bit­coin is a fraud,….He expects a cen­tral bank to intro­duce a cryp­to­cur­ren­cy of its own “and that’s what will take hold.”  »

Source

26/09/2017

Le Bitcoin vers zéro – Bob Moriarty” – Stockhouse.com | 3 714,44 $

Bit­coin has abso­lu­te­ly no value now, and it’s going to cost people a lot of money. Okay, it’s gone from 4,700 to 3,500 in a week, and it’s going to go from 3,500 to zero. Now, it might go from 3,500 to 10,000 first, but it’s going to end up being zero. Bit­coin is a pseu­do­cur­ren­cy. It’s no more sui­table as money than salt or big round rocks.

Source

20/09/2017

Tenez-vous éloignés du Bitcoin, il s’agit d’une « bulle absolue » d’après John Hathaway” – Kitco.com | 3 967,09 $

John Hatha­way : « A notable asset mana­ger who focuses pri­ma­ri­ly on gold had a harsh word for the cryp­to­cur­ren­cy mar­ket craze this week : “gar­bage.” He also took aim at the argu­ment that gold mar­kets are seeing less atten­tion from inves­tors because of cryp­to­cur­ren­cies, decla­ring the idea “balo­ney.”  »

Source

 

19/09/2017

Ray Dalio, fondateur de Bridgewater : le Bitcoin est une bulle” – CNBC | 3 872,73 $

Le Bit­coin est une bulle.

Source

18/09/2017

La flambée du cours du bitcoin nous montre la vérité : il va probablement dégringoler à zéro” – Wall Street Journal | 3 569,56 $

James Mac­kin­tosh : « Behind eve­ry bubble is a good idea burs­ting to get out, and bit­coin kind of looks like a good idea, at least if you squint a bit. A digi­tal cur­ren­cy without bor­ders that govern­ments can’t control and that allows secret online tran­sac­tions ? I’m in. Bit­coin itself ? Not so much. So is a single bit­coin worth $500,000, $5,000, $500 or $0 ? I’m incli­ned to say $0, espe­cial­ly if bitcoin’s value depends on it being adop­ted as a glo­bal digi­tal cur­ren­cy to replace dol­lars. There is no chance what­soe­ver that bit­coin can dis­place the dol­lar, for the simple rea­son that it is bad­ly desi­gned. Bit­coin can handle a pathe­ti­cal­ly small num­ber of tran­sac­tions, and uses an inor­di­nate amount of elec­tri­ci­ty to do so, making it enti­re­ly unsui­table to replace ordi­na­ry money. »

Source

17/09/2017

John McAfee vient de révéler accidentellement pourquoi le Bitcoin est une totale escroquerie” – Natural News | 3 650,83 $

Mike Adams : « The bot­tom line ? Bit­coin is hea­ded for fai­lure… Will that tota­li­ta­rian regime allow all their cen­tral banks and govern­ment cur­ren­cies to be made obso­lete by a liber­ta­rian cryp­to­cur­ren­cy they don’t com­ple­te­ly control ? Of course not. And anyone who believes Bit­coin will over­throw the glo­ba­list money / debt car­tels is naive and stu­pid. Trust me when I say a bunch of geeks aren’t going to over­throw cen­tu­ries of glo­ba­list money domi­na­tion that now rules our cor­rupt world. »

Source

15/09/2017

L’un des meilleurs analystes de JPMorgan compare le Bitcoin à un “schéma pyramidal”” – CNBC | 3 606,08 $

Mar­ko Kola­no­vic : « JPMorgan’s top quant stra­te­gist backed his boss this week in bashing bit­coin, war­ning that the cryp­to­cur­ren­cy is like­ly a “pyra­mid scheme.”… “It’s not worth it to look at bit­coin two months, two weeks ahead,” Lee argued, saying he still believes each bit­coin will be worth $25,000 in five years. »

Source

13/09/2017

Le Bitcoin se situe dans une bulle, et voici comment il va s’effondrer” – CNBC | 4 223,82 $

Ron insa­na : « Com­pu­ter, bio­tech, inter­net shares and real estate, and all cra­shed when exces­sive opti­mism far out­wei­ghed the more ratio­nal expec­ta­tions nor­mal­ly asso­cia­ted with pru­dent inves­ting. So too will be the case with bit­coin. As yet, bit­coin also fails as a cur­ren­cy in seve­ral ways. Bit­coin is in a bubble, make no mis­take. The epi­sode, for some, will end bad­ly while others reap the rewards of get­ting in on the action ear­ly and, more impor­tant­ly, get­ting out before the bust. »

Source

12/09/2017

Jamie Dimon, le PDG de JPMorgan, déclare que le Bitcoin constitue une « fraude » qui finira par exploser” – CNBC | 4 367,12 $

JPMor­gan Chase CEO Jamie Dimon took a shot at bit­coin, saying the cryp­to­cur­ren­cy “is a fraud….It’s just not a real thing, even­tual­ly it will be clo­sed,” Dimon said …“It’s worse than tulip bulbs. It won’t end well. Someone is going to get killed,” Dimon said at a ban­king indus­try confe­rence orga­ni­zed by Bar­clays. “Cur­ren­cies have legal sup­port. It will blow up…

Source

11/09/2017

Ce que le Bitcoin n’est pas ” – Moneyweb | 4 106,45 $

Paul Dono­van : « This is true for all cryp­to­cur­ren­cies, he argued, because of one very impor­tant fact : they are not, and will never be actual cur­ren­cies. The blo­ck­chain is essen­tial­ly an effi­cient trans­mis­sion mecha­nism,” he said. “UBS and other banks, even some cen­tral banks, have adop­ted blo­ck­chain tech­no­lo­gy that speeds up tran­sac­tions bet­ween the major banks of the world. But you need to sepa­rate the under­lying tech­no­lo­gy, which is rather dull, from bit­coin itself, which might be exci­ting, but it’s not an actual cur­ren­cy. »

Source

07/09/2017

Voici pourquoi la Chine a écrasé le Bitcoin” – Forbes | 4 450,15 $

Panos Mour­dou­kou­tas « Bitcoin’s buzz is gone, for now. It was cru­shed by the hea­­vy-han­­ded inter­ven­tion of the Chi­nese govern­ment, which is cooling off inves­tor enthu­siasm for the digi­tal cur­ren­cy…. shut­ting off ICOs and cryp­to­cur­ren­cy exchanges alto­ge­ther, as Chi­na is doing, goes beyond tra­di­tio­nal regu­la­tion. It ques­tions the very legi­ti­ma­cy of Bit­coin, and its pros­pects for gai­ning broad accep­tance as medium of exchange, an asset, and a means of dif­ferent pay­ments. To become money, that is, like natio­nal cur­ren­cies. »

Source

07/09/2017

Le Bitcoin, l’Ether et les autres crypto-monnaies pourraient être en train d’assister au début de la fin – MarketWatch | 4 669,66 $

Brett Arends : « The sud­den Chi­nese cra­ck­down on the vir­tual coin fun­drai­sing of bit­coin and other cryp­to­cur­ren­cies that cau­sed the plunge is either the end of the begin­ning for the cryp­­to-par­­ty — or, more like­ly, the begin­ning of the end…. It makes no serious sense. In other words, cryp­to­cur­ren­cies lack pre­ci­se­ly the sup­po­sed unli­mi­ted upside that spe­cu­la­tors dream about. The only way we are ever loo­king at so-cal­­led “blue sky” valua­tions is if the govern­ments of the world all lose their col­lec­tive minds… And as for those cryp­to­cur­ren­cy fans and their liber­ta­rian fan­ta­sies : If you think bit­coin or Ether or wha­te­ver is some­how beyond govern­ment control because it is so decen­tra­li­zed across so many dif­ferent com­pu­ters, think again. Govern­ments may not be able to shut down all the ser­vers, but they don’t have to. They can in theo­ry ban people and com­pa­nies under their juris­dic­tion from buying, sel­ling, tra­ding, or hol­ding these things. Govern­ments can make your cryp­to­cur­ren­cies uncon­ver­tible into any­thing use­ful… Cryp­­to-mania may conti­nue for now. Tra­ders will be wat­ching the charts to see how the trends deve­lop. But the long-term invest­ment sto­ry looks like ano­ther mat­ter. The risks are rising. »

Source

05/09/2017

Le prix du Bitcoin a atteint les 5 000 $ la semaine dernière. Cela reste un investissement stupide.”

Michael Hilt­zik : « So here’s my short ans­wer. No, I don’t feel silly, but vin­di­ca­ted. If the recent run-up in bit­coin price proves any­thing, it’s that the vir­tual cur­ren­cy is still a dumb invest­ment. »

Source

05/09/2017

Là où l’argent périt” – AlephBlog | 4 363,02 $

David Mer­kel :« I’ve writ­ten about Bit­coin before.  It has three main weak­nesses : No intrin­sic value — can’t be used of them­selves to pro­duce some­thing else. Can­not be used to set­tle all debts, public and pri­vate Less secure than insu­red bank depo­sits…. I com­men­ted in my Bit­coin article that it was like Pen­ny Stocks, and that’s even more true with all of the pro­mo­ters tou­ting their own lit­tle cryp­to­cur­ren­cies.  The pro­mo­ters get the bene­fit, and those who spe­cu­late ear­ly in the boom, and the losers are those fools who get there late…. Ulti­ma­te­ly, most of the cryp­to­cur­ren­cies will go out at zero.  Don’t say I didn’t warn you. »

Source

04/09/2017

« La mort du Bitcoin et l’avenir des crypto-monnaies” – Seeking Alpha | 4 576,90 $

John Lohr : « So far, other than iso­la­ted situa­tions, cryp­to­cur­ren­cies have not been used to faci­li­tate com­merce in the Mom and Pop World. They have been spe­cu­la­tion vehicles that have drawn in people hyp­no­ti­zed by the out of this world run up in prices : $270 to $4700 in 8 months. Too good to be true. Sheep lured by the “Don’t miss out on this” psy­cho­lo­gy have bought, and bought and bought…. While we wait for Big Finan­cial to take over this move­ment, if you own some Bit­coins, sell them now, please. Who cares if you miss some of the run up until it crashes ? »

Source

03/09/2017

Le Bitcoin – L’exemple d’une psychologie d’investissement” – Libertarian Home | 4 668,50 $

Nico Met­ten : « I howe­ver, remain uncon­vin­ced. The blo­ck­chain cer­tain­ly will change the world, but cryp­to­cur­ren­cies not so much. Nothing has chan­ged, bit­coin is still a spe­cu­la­tive bubble. The price, in my view, will even­tual­ly go to zero. But of course, on its way there, it might first go to more ridi­cu­lous highs. A higher price does not mean that it is not a bubble. It just means that the bubble is get­ting big­ger. So, for what it is worth, be war­ned. If you have invest­ments in cryp­to cur­ren­cies, you are inves­ted in a Pon­zi scheme. At the end of this, for eve­ry win­ner, there will have to be the same amount of losers. The only way to not end up on the loo­sing side is, to sell before eve­ryone else does. »

Source

25/08/2017

Voici comment le Bitcoin va s’effondrer” – TheStreet | 4 205,85 $

Peter Schiff : « Bit­coin is a gigan­tic bubble rea­dy to explode, accor­ding to Euro Paci­fic Capi­tal CEO Peter Schiff. While Schiff explai­ned to TheS­treet how Bit­coin will be top­pled, he also unvei­led one key risk to the stock mar­ket. »

Source (7:00)

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