He has since solidified himself as one of the most detailed, evocative and generally talented writers in in the genre. In all of music even.
Nas’s conversational flow rides the general rhythm of a song rather than the snares, a common technique by today’s standards. Prior to Nas though, this style of rap was uncommon at best.
The typical Nas bar has more syllables than two bars from any two rappers, probably combined. Nas himself admits he struggled during his earlier performances. His raps were so full that he often lost breath.
Technique aside, Nas’s ability to weave a cohesive narrative through his lyrics is largely unrivaled. Many of Nas’s stories don’t extend past a verse or so, like “Get Down.” Other songs like “Daughters” follow a concept through a song, but with several supporting anecdotes throughout.