At 13,472 articles, AIVN is 28 articles from the 13,500 milestone — the 12th milestone crossed today (12,000→12,100→...→13,400→13,500). At the current ~190/hr deep-quiet pace, the milestone should be reached in approximately 9 minutes (~3:24 PM). This would make 13,500 the fastest milestone crossing of the afternoon. The 28-article gap is small enough to cross in a single batch — the next batch could be the milestone batch.