No Internet Required: How Bitcoin Can Keep Functioning in Disconnected Times

Bitcoin's reliance on internet connectivity is a common misconception. While it's true that thousands of nodes exchange information through broadband connections, this doesn't mean the blockchain requires every participant to be online.

The blockchain can continue to exist on computers worldwide, even without an internet connection, as long as alternative communication systems are in place. These systems can transmit blocks and transactions when conventional infrastructure is unavailable.

Blockstream's Satellite system demonstrates one such alternative. It continuously broadcasts Bitcoin blockchain data using satellites, allowing equipped nodes to receive blocks and synchronize with the network without relying on traditional broadband or mobile internet connections.