5) Mike's insight: why don't we ask ourselves this question: "what do most people have one of and would find exceedingly difficult to have 10,000 of?" I guess some answers might be a house or a car or something like that... but Mike added the additional condition: "what do most people have one of and would find exceedingly difficult to have 10,000 of and *which they can prove they have over the internet*?"
To be fair to those of us on the more sceptical side (but who remain civil), this is not really a matter of insight. It's not as if no one else who is thinking about identity management understands that governments have pre-existing databases (although Mike's investigation into NFC obviously raises the value of his argument). It's that we consider it a really bad fit with decentralized cryptocurrency. What some people are afraid of, rightly or wrongly, is that the use of such an identify would become de facto if not de jure required.