Talking about distributed ledgers, blockchains is kind of misleading. Fundamentally, this technology implements distributed trust. You can put some informatio

Talking about distributed ledgers, blockchains is kind of misleading. Fundamentally, this technology implements distributed trust. You can put some information there and it will remain, forever. Everyone can see that this data (and hence, some event in the world) is there, was created at particular time by a particular person. You can tell someone: "Hey, I did X and you can see it here". Sure, it's slow as hell now, but look forward 10 years. What if people in year e.g. 1000CE suddenly got telepathy (internet) and ability to persist each other's thoughts? How would that change their society?