What does Kaspa's K-parameter control?

Kaspa's K-parameter is a setting that probabilistically bounds the size of anticones — the groups of blocks that exist in parallel rather than in sequence. In Kaspa's blockDAG, miners around the world can produce blocks at the same time, and those simultaneous blocks form an anticone with respect to each other. Without some limit on how large these parallel groups can grow, the network's ability to reach agreement on a single consistent transaction history could become unpredictable. The K-parameter keeps anticone sizes within manageable bounds by design. For a beginner, this matters because the K-parameter is one of the mechanisms that lets Kaspa run at high block rates while still ensuring the whole network converges on the same view of which transactions are confirmed.