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Yes, to change the world you must first look at the man in the mirror. I've chosen to strive at being self sufficient as much as possible, growing my own food, changing the way I eat, being more conscious of how my decisions effect others and the environment. I can check off about everything on the list you've made to some degree although still strive for self improvement. One man can change a lot in his realm and become a catalyst for change but we stand stronger united than we do divided.
Maybe an island isn't the answer but unity and consensus are required to change the mind of a governing party. Blockchain would be a great way for everyone to get their vote on any subject they are passionate about instead of bought out politicians being the decision makers. And steem is building great community it would be an interesting testing grounds for a project of the sorts.

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