China and America agree that Iran can never have a nuclear weapon. In a world where the UN has become less relevant, getting the only two major powers to agree to this ban is important in many ways.
Firstly it could be the start of other bilateral agreements that could actually be practical.
Secondly it clearly marks Iran as a rogue nation.
Thirdly it lowers the tension between the two super powers and given Iran is more important to China, represents a concession
Fourthly it establishes a precedent on nuclear proliferation.
The other things that were agreed were easier, but a start on AI is also important There was some human contact that can’t be underestimated. You had Iranian leaders talking directly on American media. The missing elephant not in the room was Vladimir.



