Si par le plus grand des hasards tu pense que cette monnaie( de singe ) est une valeur sur ( car rien en ce bas monde n'est sur a 100 %) n'hésite pas a acheter cette merveille indexer sur du vent ( virtuel ) et fait toi payer tes salaires avec du bitcoin  ( ne pas oublier le courant qui va avec ( micro centrale nucléaire portable )
Panurge vous salut

C'est exactement ce que je fais et ça fonctionne très bien, depuis 6 ans en plus.

Virtuel, lol.

pourquoi tu t'obstines a comparer le bitcoin avec les monnaies traditionnelles ?

ce n'est pas la meme chose. le Bitcoin est une 'digital asset' qui a sa propre valeur intrinsèque.
La valeur d'exchange de/vers le système monétaire traditionnel  c'est qu'un aspect des choses. Un aspect volatil et non stable pour le moment car tout le monde n'est pas utilisateur et vu le nombre limité de bitcoins la demande fait monter le prix d'exchange.

apres je doute que si je vais a l'étranger avec un sac de pierres précieuses ou un morceau d'or (hors pieces frappées) je puisse plus facilement acheter quelque chose... 'universel' ca vaut rien si on oublie l'aspect 'pratique' et 'vérifiable'. Le gros avantage du bitcoin c'est son aspect vérifiable sans recours a un tiers de confiance. Tes pierres précieuses peuvent être fausses ou même tes billets en $. Tu dois faire confiance a quelqu'un ou a un Etat pour les vérifier.

Today, each bitcoin transaction requires the same amount of energy used to power nine homes in the U.S. for one day. And miners are constantly installing more and faster computers. Already, the aggregate computing power of the bitcoin network is nearly 100,000 times larger than the world’s 500 fastest supercomputers combined.

The total energy use of this web of hardware is huge — an estimated 31 terawatt-hours per year. More than 150 individual countries in the world consume less energy annually. And that power-hungry network is currently increasing its energy use every day by about 450 gigawatt-hours, roughly the same amount of electricity the entire country of Haiti uses in a year.

By July 2019, the bitcoin network will require more electricity than the entire United States currently uses. By February 2020, it will use as much electricity as the entire world does today.

That stalls growth in the number of bitcoins that exist, but as the value of those bitcoins has skyrocketed miners are devoting more and more computational resources to compete for new coins, requiring huge amounts of electricity and time. The speculative frenzy has at times created massive lag in the already inherently limited speed of transactions across the Bitcoin network and jacked up processing fees.

The result is that at the same time Bitcoin needs widespread adoption to break beyond being a purely speculative investment, it’s becoming very difficult and frustrating for retailers to use. According to Valve, transaction fees have exploded from their original cost of 20 cents to roughly $20, a 100x increase, over the course of the past year. And since those transactions are often lagging at the same time the value of bitcoin is rapidly fluctuating, it’s caused real problems:

When checking out on Steam, a customer will transfer x amount of Bitcoin for the cost of the game, plus y amount of Bitcoin to cover the transaction fee charged by the Bitcoin network. The value of Bitcoin is only guaranteed for a certain period of time so if the transaction doesn’t complete within that window of time, then the amount of Bitcoin needed to cover the transaction can change. The amount it can change has been increasing recently to a point where it can be significantly different.