xyr point seems to be that your claim that e-mail addresses are decentralized is faulty. No amount of "Well you are not decentralized in your block chain, eith

xyr point seems to be that your claim that e-mail addresses are decentralized is faulty. No amount of "Well you are not decentralized in your block chain, either." is going to rebut that. Indeed, it actually reinforces the argument that your claim was faulty, by implicitly agreeing to it with a "but neither are you" response. So perhaps you would like to now explain how e-mail addresses are a system without a centre. Bear in mind that you yourself have just made the point about ICANN being at their centre. (-: