A common question among smart Bitcoin skeptics is, “Why would one use Bitcoin when you can use dollars or euros, which are more common and more widely accepted?” It’s a fair question, and one I’ve tried to answer by pointing out that if Bitcoin were just a currency (except new and untested), then yes, there would be little reason why one should prefer it to dollars. The fact, however, is that Bitcoin is more than money, as I recently explained in Reason. Bitcoin is better thought of as a payments system, or as a distributed ledger, that (for technical reasons) happens to use a new currency called the bitcoin as the unit of account. As Tim Lee has pointed out, Bitcoin is therefore a platform for innovation, and it is this potential that makes it so valuable.
Eric Posner is one of these smart skeptics. Writing in Slate in April he rejected Bitcoin as a “fantasy” because he felt it didn’t make sense as a currency. Since then it’s been pointed out to him that Bitcoin is more than a currency, and today at the New Republic he asks the question, “Why would you use Bitcoin when you can use PayPal or Visa, which are more common and widely accepted?”
He answers his own question, in part, by acknowledging that Bitcoin is censorship-resistant. As he puts it, “If you live in a country with capital controls, you can avoid those[.]” So right there, it seems to me, is one good reason why one might want to use Bitcoin instead of PayPal or Visa. Another smart skeptic, Tyler Cowen, acknowledges this as well, even if only to suggest that the price of bitcoins will fall “if/when China fully liberalizes capital flows[.]”