What does 'multiple parents' mean in Kaspa's blockDAG?

In Kaspa, a block can reference more than one previous block as its parent, and those multiple parent links are what give the ledger its DAG — directed acyclic graph — shape instead of a simple chain. A traditional blockchain forces each new block to point to exactly one predecessor, which means parallel blocks produced at the same time must compete and one gets discarded. Kaspa's design allows a block to acknowledge several predecessors at once, weaving them together into a richer graph structure. This matters for beginners because it is the foundation of how Kaspa handles high transaction throughput: the DAG structure created by multiple parents is what makes room for many blocks to coexist, while a separate mechanism — the mergeset — then decides which of those blocks count toward consensus.