The venture capital firm of Marc Andreesen, the creator of the first web browser, Andreessen Horowitz, has invested just under $50 million in Bitcoin-related start-ups. The firm is actively searching for more Bitcoin-based investment opportunities. Here's is one of the reasons why: from an excerpt in an Op-Ed Andreesen just posted on the NYT (the same place where that ecomedian, Paul Krugman, can't stop bashing it).