What is DagKnight and how does it improve on Kaspa's current protocol?

DagKnight (DK) is Kaspa's new consensus protocol, designed to replace GHOSTDAG with a faster and more secure alternative. Byzantine fault tolerance is a network's ability to keep operating correctly even when some participants behave dishonestly — DagKnight achieves 50% byzantine tolerance, meaning the network stays safe even if up to half of its participants act against it. It also achieves responsiveness, a technical property meaning it confirms transactions as quickly as real network conditions allow, rather than being paced by a fixed worst-case assumption. For a beginner, this means DagKnight is an upgrade that simultaneously raises the bar on both security and speed compared to the GHOSTDAG protocol that currently runs Kaspa.