A consensus algorithm is a fault-tolerant mechanism that is used in computer and blockchain systems to achieve the necessary agreement on a single data value or a single state of the network among distributed processes or multi-agent systems.
On the BitcoinBitcoin1$ 77,295.840.18%-6.01%-15.89%details blockchain, for instance, the consensus mechanism is known as Proof-of-Work (PoW)
The computer can be used as a tool to liberate and protect people, rather than to control them.