The best known consensus mechanisms are Proof of Work (e.g. Bitcoin) and Proof of Stake (e.g. NXT). Neo proposes an improvement by using Delegated Byzantine Fault Tolerance (dBFT) as its consensus mechanism. Since dBFT is a new protocol this has led many people to question how it works and why it is an improvement over other consensus mechanisms.
The irony on saying this on a steem blockchain that uses dpos, protocol that invented delegation in 2014 with original bitshares project. also was first instance of 2/3 or 66% number implementation on live blockchain as well lmao