After years of tinkering and incremental progress, AIs can now play Diplomacy as well as human experts.[6]
It seems that human-level play is possible in regular Diplomacy now, judging by this tweet by Meta AI. They state that:
We entered Cicero anonymously in 40 games of Diplomacy in an online league of human players between August 19th and October 13th, 2022. Over the course of 72 hours of play involving sending 5,277 messages, Cicero ranked in the top 10% of participants who played more than one game.
I am lacking context, why is this important?