Thank you @DisruptionJoe and PL team for all the hard work you have put in to continuously iterate the proposal based on feedback as well as all the twitter space and workshops you have organised to get this going. 
These are fair near/mid term goals for milestone 1, however, we need to also be able to gauge how these metrics relate to the north star/mission of the DAO. We have suggested what the north star could be here Proposal: Temp check - Mission of the Arbitrum DAO [Constitutional] and we are fine with adapting to another mission statement as long as we as a DAO agree on why we are funding anything at all.
With this rationale, I do believe that these points are important for us to clarify:
and I am happy to see that the PL team has taken initiative to address this. Maybe a smoother path forward is to start with funding the Discover phase as milestone 1.1, facilitated by the PL team? Each of the subsequent deliverables could be sub-milestones for the PL team to deliver which unlocks further stage of funding. In this regard, it would be good to have a breakdown of expenses for each of the