I understand. But that is a pretty silly comparison for him to make. He's sampling two different universes. In the open source universe, everything is open to h

I understand. But that is a pretty silly comparison for him to make. He's sampling two different universes. In the open source universe, everything is open to him, by definition. He has a complete sample space. In the closed source universe, he may only sample the companies who choose to contract his services. That is an extremely biased sample. Not to mention the basic fact that he's almost certainly not controlling for other factors, like project age, usage level, etc.