Decentralized governance is interesting like nuclear fusion: it's 30 years away and always will be. Real governance requires somebody to take the time and effort to think about solutions to public goods problems. In other words, governance is a public good. Decentralizing it just results in underprovision.
Except nuclear fusion isn't 30 years away anymore. A ton of progress has been made in plasma physics. There's a good chance we'll see an energy-positive reactor by the end of this decade.
I do not. Direct democracy, as practiced by Athens, would be a better example. Worked OK for Athens for a while. Athens had probably 30,000 citizens. No modern state has tried replacing representative democracy with direct democracy, for reasons nicely explained by Benjamin Constant (https://oll.libertyfund.org/titles/constant-the-liberty-of-a...).