Dixon writes:

I’m not claiming that Bitcoin (or any new technology) can save the economy or the world. The technology industry is in the business of creating products and services that either enable new activities or make existing activities less expensive. Venture capitalists are in the business of funding entrepreneurs who run experiments to try to create these new products and services. I believe the only way the technology industry can offer meaningfully improved financial services is by building new services that don’t depend on incumbent companies. Bitcoin is a serious proposal for dramatically improving the payments industry. There are plenty of open questions but I think it’s an experiment worth running.

I don't buy the argument that Bitcoin is a serious proposal for dramatically improving the payments industry.

Because Bitcoins themselves have no stability in price whatsoever.

We can't improve payments with a currency that has ridiculously wild swings.

What's wrong with the dozens of existing payment solutions? Dixon never says.

He does say this:

Charging 20% interest rates (banks) and skimming pennies off every transaction (Visa and Mastercard) is a very profitable business. Starting a new payment company that doesn’t depend on the existing banks and credit card companies could be disruptive.

On that we can agree. Where I disagree is that Bitcoins are important to that disruption.

More question marks about why Chris Dixon wrote this:

http://pandawhale.com/post/34726/andreessen-horowitz-vc-chris-dixon-defends-bitcoin-business-insider