Michel, Your blog posting of Matt Cropp's ideas about the fall in transaction costs states in bold: "THIS IS A MOST IMPORTANT ARGUMENT AND CRUCIAL ASPECT OF THE ‘P2P Revolution’!!" Why do you think it's so important? Currency systems are about tracking ownership and subjective value perception rather than providing open access and accurately tracking production inputs and outputs. It seems to me it has almost nothing to do with open source, the commons, or peer production. Why would anyone want to "micro-own" parts of something when they could get access to the whole for free? Matt closes by saying that technology "could be paving the way towards the age of the co-operative". This is history already - there is no "could be" about it. -Karl