@alawilarongt
Byzantine Fault Tolerance (BFT) is a concept in distributed systems that deals with ensuring computer systems continue to function correctly despite some of their components failing in unexpected ways. In BFT systems, nodes (computers) follow protocols to maintain consistency and availability even when a portion of the nodes might behave maliciously or fail. This is essential for blockchain technology, as it allows a network of nodes to agree on transactions and block validity without a central authority. BFT systems are designed to handle scenarios where some nodes may lie, cheat, or otherwise act contrary to the protocol's rules, hence the term "Byzantine" in reference to the historical Byzantine Empire where distrust and deceit were prevalent.