As a decentralized social protocol that has been supported by Twitter founder Jack Dorsey 14 bitcoins, I don't know how many people still remember Nostr, which was a smash hit two years ago and was banned from promotion by Twitter during Musk's tenure? Just today, Jack Dorsey directly launched a physically enhanced version of Nostr, this time called bitchat, before Nostr was needed through a network repeater, now bitchat directly through Bluetooth to achieve point-to-point encrypted communication within a physical distance, each device can act as a client, and then at the same time can also be used for relay servers to achieve multi-pole message jumping, similar to the honeycomb principle, a large number of Bluetooth will form a local communicable cluster, so there will be a large number of local clusters, The devices in the overlapping cluster will become relay nodes, and eventually create a network-free network topology through Bluetooth devices. Now that the beta version and the white paper are out, whatever the outcome, this is Jack Dorsey.