A bed time story of the blockchain (ELI5)

Mummy, Daddy, what is a blockchain? Listen, Kid! Once upon a time, in a faraway land call the Internet, villagers were oppressed. They could not transact without obliging to the will of the Intermediaries, an organization that, in exchange for their services, required fees and “losing some control.” Then comes a mysterious warrior (or group of warriors, no one really knows for sure) called Satoshi Nakamoto. He brought a magic book with properties unheard of:...

 · JYZ