Criptomoedas (bitcoins) nao sao reservas de valor efetivo - Mark Spitznagel (Mises)

Toda vez que alguém vem me falar dos Bitcoins, pergunta se eu já comprei os meus, no limite da minha ignorância econômica e monetária, eu respondo:
Boa iniciativa para escapar de controles governamentais sobre os seus fluxos de renda, mas você comprou Bitcoin a partir do nada?
Ou seja, eles representam uma pequena brecha no emissionismo monopolista dos Estados, que podem criar moedas sem valor, mas garantidas pela violência física do Estado. Mas em algum momento esse papel pintado precisa se encontrar com algum bem físico: seu consumo pessoal, seu investimento próprio, seus negócios no mundo real. O bitcoin pode até ajudar em algum momento, mas não pode fazer tudo.
Resumindo: as criptomoedas podem até diminuir parcialmente o monopólio estatal sobre as moedas, mas você troca a senhoriagem das autoridades emissoras pelas comissões pagas aos intermediários (os donos dos softwares de negociação) dessas novas moedas, mas você não resolve a questão crucial da expressão monetária de algum valor, qualquer que seja ele. Até aqui as criptomoedas representaram um gigantesco esquema especulativo, mantido por muitos libertários, mas em algum momento mesmo libertários precisam comer arroz e feijão, certo?
Paulo Roberto de Almeida

Why Cryptocurrencies Will Never Be Safe Havens

by Mark Spitznagel

Mises Daily, August 15, 2017

Every further new high in the price of Bitcoin brings ever more claims that it is destined to become the preeminent safe haven investment of the modern age — the new gold.

But there’s no getting around the fact that Bitcoin is essentially a speculative investment in a new technology, specifically the blockchain. Think of the blockchain, very basically, as layers of independent electronic security that encapsulate a cryptocurrency and keep it frozen in time and space — like layers of amber around a fly. This is what makes a cryptocurrency “crypto.”

That’s not to say that the price of Bitcoin cannot make further (and further…) new highs. After all, that is what speculative bubbles do (until they don’t). 

Bitcoin and each new initial coin offering (ICO) should be thought of as software infrastructure innovation tools, not competing currencies. It’s the amber that determines their value, not the flies. Cryptocurrencies are a very significant value-added technological innovation that calls directly into question the government monopoly over money. This insurrection against government-manipulated fiat money will only grow more pronounced as cryptocurrencies catch on as transactional fiduciary media; at that point, who will need government money? The blockchain, though still in its infancy, is a really big deal.

While governments can’t control cryptocurrencies directly, why shouldn’t we expect cryptocurrencies to face the same fate as what started happening to numbered Swiss bank accounts (whose secrecy remain legally enforced by Swiss law)? All local governments had to do was make it illegal to hide, and thus force law-abiding citizens to become criminals if they fail to disclose such accounts. We should expect similar anti-money laundering hygiene and taxation among the cryptocurrencies. The more electronic security layers inherent in a cryptocurrency’s perceived value, the more vulnerable its price is to such an eventual decree.

Bitcoins should be regarded as assets, or really equities, not as currencies. They are each little business plans — each perceived to create future value. They are not stores-of-value, but rather volatile expectations on the future success of these business plans. But most ICOs probably don’t have viable business plans; they are truly castles in the sky, relying only on momentum effects among the growing herd of crypto-investors. (The Securities and Exchange Commission is correct in looking at them as equities.) Thus, we should expect their current value to be derived by the same razor-thin equity risk premiums and bubbly growth expectations that we see throughout markets today. And we should expect that value to suffer the same fate as occurs at the end of every speculative bubble. 

If you wanted to create your own private country with your own currency, no matter how safe you were from outside invaders, you’d be wise to start with some pre-existing store-of-value, such as a foreign currency, gold, or land. Otherwise, why would anyone trade for your new currency? Arbitrarily assigning a store-of-value component to a cryptocurrency, no matter how secure it is, is trying to do the same thing (except much easier than starting a new country). And somehow it’s been working.

Moreover, as competing cryptocurrencies are created, whether for specific applications (such as automating contracts, for instance), these ICOs seem to have the effect of driving up all cryptocurrencies. Clearly, there is the potential for additional cryptocurrencies to bolster the transactional value of each other—perhaps even adding to the fungibility of all cryptocurrencies. But as various cryptocurrencies start competing with each other, they will not be additive in value. The technology, like new innovations, can, in fact, create some value from thin air. But not so any underlying store-of-value component in the cryptocurrencies. As a new cryptocurrency is assigned units of a store-of-value, those units must, by necessity, leave other stores-of-value, whether gold or another cryptocurrency. New depositories of value must siphon off the existing depositories of value. On a global scale, it is very much a zero sum game.

Or, as we might say, we can improve the layers of amber, but we can’t create more flies.

This competition, both in the technology and the underlying store-of-value, must, by definition, constrain each specific cryptocurrency’s price appreciation. Put simply, cryptocurrencies have an enormous scarcity problem. The constraints on any one cryptocurrency’s supply are an enormous improvement over the lack of any constraint whatsoever on governments when it comes to printing currencies. However, unlike physical assets such as gold and silver that have unique physical attributes endowing them with monetary importance for millennia, the problem is that there is no barrier to entry for cryptocurrencies; as each new competing cryptocurrency finds success, it dilutes or inflates the universe of the others.

The store-of-value component of cryptocurrencies — which is, at a bare-minimum, a fundamental requirement for safe haven status — is a minuscule part of its value and appreciation. After all, stores of value are just that: stable and reliable holding places of value. They do not create new value, but are finite in supply and are merely intended to hold value that has already been created through savings and productive investment. To miss this point is to perpetuate the very same fallacy that global central banks blindly follow today. You simply cannot create money, or capital, from thin air (whether it be credit or a new cool cryptocurrency). Rather, it represents resources that have been created and saved for future consumption. There is simply no way around this fundamental truth.

Viewing cryptocurrencies as having safe haven status opens investors to layering more risk on their portfolios. Holding Bitcoins and other cryptocurrencies likely constitutes a bigger bet on the same central bank-driven bubble that some hope to protect themselves against. The great irony is that both the libertarian supporters of cryptocurrencies and the interventionist supporters of central bank-manipulated fiat money both fall for this very same fallacy.

Cryptocurrencies are a very important development, and an enormous step in the direction toward the decentralization of monetary power. This has enormously positive potential, and I am a big cheerleader for their success. But caveat emptor—thinking that we are magically creating new stores-of-value and thus a new safe haven is a profound mistake.

Mark Spitznagel is Founder and Chief Investment Officer of Universa Investments. Spitznagel is the author of The Dao of Capital, and was the Senior Economic Advisor to U.S. Senator Rand Paul.