Following the release of PARSEC - A Paradigm Shift for Asynchronous and Permissionless Consensus last week Maidsafe Rust Developer @pierrechevalier83 has created this fantastic video to give you a more in depth overview of the ABFT consensus mechanism.
discussion on REDDIT: https://www.reddit.com/r/CryptoCurrency/comments/8lup0w/parsec_a_paradigm_shift_for_asynchronous_and/