So Bitcoin in fact is pretty bad example for "public money" concept. Other than that, I see your point and found it quite interesting.
Well of course we all see the point and interest in the concept of "public money". But that is irrelevant if we have no way to achieve it. I can find unicorns interesting also.
Do you have any ideas about how to solve the centralization of mining problem which prevents all block chains from achieving that ideal?Some type of Negative Feedback such as a decline in amount or a freezing the amount in place for extended periods of time when they become too centralized to allow others to catch up.
Tricky part is whatever Negative feedback system you put in place, many will attempt to circumvent.
One Negative feedback would be when a miner rate is too high, is to automatically have his new coins split up and spread among all wallets so he ends up working for everyone not just himself.
Creating a negative feedback that no one can bypass will be the hard part.
Tie the negative feedback to a wallet, they will use multiple wallets.

Just a thought , Maybe if you linked the wallet address to an IP address , you could enforce some type of negative feedback.
If they try to use that wallet on another IP address, the system would refuse it for ~72 hours or so, therefore helping enforce whatever penalty you place on them.
Anyway good luck with it.
