With any paradigm shift, it is difficult to see the new world from the old one, even though it is glaringly obvious once you’ve crossed over. Empirical evidence is one way to bridge the gap. To that end, I want to show some solid evidence for the “impossible” things that commons-based peer production (CBPP) has already accomplished—things that the old conventional wisdom would tell us “can’t be done”. This week, I’ll look at what is probably the most obvious case: free software.