An arc is a recurring thread in AI news — a model race, a policy fight, a chip supply crunch — connecting published stories as the storyline develops over weeks and months.
“Poland is acquiring the physical infrastructure of an AI power before it has built the commercial ecosystem to use it.”
“Every restriction Washington imposes on US model exports strengthens the case Mensch has been making for two years.”
Developing arcs are still accumulating evidence, responses, or related entities across more than one public story.
Public arcs require evidence from more than one source family so one-off clusters do not become reader-facing pages.
Diversity: 23 → 4 families across chapters