Why I'm Interested in Bitcoin

I used to believe that the reversibility of transactions was a major benefit of using cards, but it turns out that is really just a reversibility of liability.

Credit cards are an outdated tool. They pass plain text data about a user to authorize a transaction allowing hackers to pull something off like the Target hack. One of the advantages of bitcoin is the ability to digitally authorize a transaction that cannot be reused. In an online marketplace it's far far easier to accept bitcoins than credit cards because you have no fraud risk, which is a HUGE problem in online retail.

I expect a lot of online retail stores to start accepting bitcoin payments at large discounts to cash just for this reason.

This is refreshing. I suspect even though the libertarians are the most vocal among bitcoin adopters (and that's ok), a lot of people actually agree with this.

> In an online marketplace it's far far easier to accept bitcoins than credit cards because you have no fraud risk, which is a HUGE problem in online retail.

I currently work for a large online marketplace. A very typical fraud scenario (maybe the most common) is someone collecting payment for an item that they don't actually possess. This would only be harder to deal with and correct if the payment were disbursed to an anonymous seller in bitcoins.

For all the people out there who are thinking about bitcoin as a payment technology: If you assume that customers get paid in dollars and that vendors will have to use dollars to pay their taxes, pay their employees and buy the raw materials for their products (reasonable assumptions, I think), then a payment consists of one conversion from dollars to bitcoins by the purchaser, and one conversion from bitcoins to dollars by the vendor.

Those two transactions will have associated costs. Exchanges take out trading fees and the market makers on the exchanges will want to see some profit as well (you will see this reflected in the bid/ask spread). The total cost for the transaction will be 2x the spread + exchange fees. People keep touting the 2.5% charge for using credit cards, but they don't compare it to a similar value for bitcoin. It clearly is not 0%. Exchange fees alone are can be something like 0.5%. If we double that (two conversions, remember) that's 1% just in exchange fees. Unfortunately, I don't have good numbers for bitcoin / dollar spreads because I don't watch that market very closely.

So we have 2.5% for credit cards and 1% + spread (unknown) for bitcoin. And with credit cards consumers at least get some protection in the case of fraud. Does anyone else have a better model for bitcoin transaction costs?

...currently.

I don't think most people are interested in Bitcoin primarily because of the utility it currently provides and the infrastructure that has so far been built.