People often analogize international deals on AI to traditional arms control agreements (e.g. New START, London Naval Treaty, etc). This analogy holds up for some potential proposals (e.g. directly doing arms control on GPUs), because they are close to one off agreements with ongoing inspection / verification.
For Plan A as described in AI 2040, I think a much better analogy is to the series of allied planning conferences during WW2. Some important similarities:
* In both WW2 and Plan A, the situation is complicated enough that it doesn't make sense to try to plan for every eventuality at the beginning and commit to a one-size-fits all plan, it needs to be iterative. The allies had to ongoingly coordinate complicated logistics, military planning, etc. In Plan A, countries will have to ongoingly make agreements like: exactly how much algorithmic progress to allow, which training runs should be allowed, if there is evidence of defection, how to punish that and/or improve verification, if there are AI incidents, how to respond to them, how many robots and GPUs should be allowed to be built?
* The world is transformed. In WW2, e.g. the car factories are retrofitted to build planes, in Plan A, the car factories are retrofitted to build robots. There was overall rapid technological change during WW2; there will be even faster changes during Plan A. In Plan A, a typical human experience is: working a normal job in ~2030, working in very highly paid jobs in robot factories in ~2033, and being technologically unemployed by 2035.
* The deals at the end of both need to resolve issues that are hard for people to even imagine at the beginning (e.g. the division of space, loosely analogous to the creation of East and West Germany).
Note that the allies did not trust each other in WW2 (especially the US and USSR).