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How so?
Why so?

Because centralized money control is the reason government exists. People do not need to be governed, its just a few rich people get together and do this and that to keep the masses their peons. Really, government is responsible for two main things: 1) going to war to secure resources, and 2) controlling money and keeping the masses slaves to their mode of operating it. Whereas making everyone the creator and controller of their own money supply is what blockchain tech can do. So essentially if it catches on enough then there will be only self-centered governance by oneself, not some umbilical cord like idea to 'govern-mental' capacity, which is what centralized government does. It was ok 50 or even 100 years ago, but is outdated now. It stifles beings to self organise in the most healthy and prosperous way.

I disagree but nothing wrong with disagreement.

I totally agree. Cryptocurrency will be the end of central banks, banks, fiat money, and taxation, and therefore, governments.

I may also add: blockchain can also be used for a public registry for many things. From land titles to copyrights or contracts. It will make many government (other than monetary system) functions obsolete too. :D