> Because everyone else around them would help defend the validity of the deeds, as they all own property in the same way.
That feels a bit like saying that everyone will pitch in to stop mugging since we all carry physical cash in the same way. Maybe some civilians would intervene some of the time, but most will not risk their own bodily autonomy to defend another's property.
Issuing deeds and currency feels like the easy part of creating an agreed upon land registry or economy. I have a printer and know how to use SQLite, so nothing is stopping me from issuing my own physical currency or deeds today. I could even save paper and put them on my own personal blockchain. Convincing others to honor my currency or deeds sounds like the hard part.
It is not the easy part if you want a decentralized government because no one person can be tasked with issuing and governing over those, otherwise that person will have power over everyone and kind of defeat the purpose. That doesn't mean that there aren't other equally or even harder challenges. I was not claiming that blockchains was the last problem stopping us from becoming decentralized. Anyway, like you said, nothing prevents you from issuing your currency and deeds today. And, before blockchains, the only way to have a decentralized government would be for many people to do that. However, that system is more fragile than a system built on a single blockchain everyone agrees on.
The big thing about blockchains is that it allows people to all agree on a certain asset, without giving control of that asset to a single party. That is big news for anyone group wanting to live in a decentralized society, because it was one of the big problems.
That feels a bit like saying that everyone will pitch in to stop mugging since we all carry physical cash in the same way. Maybe some civilians would intervene some of the time, but most will not risk their own bodily autonomy to defend another's property.
Issuing deeds and currency feels like the easy part of creating an agreed upon land registry or economy. I have a printer and know how to use SQLite, so nothing is stopping me from issuing my own physical currency or deeds today. I could even save paper and put them on my own personal blockchain. Convincing others to honor my currency or deeds sounds like the hard part.