The document discusses the need for academic libraries to collectively invest in building an open scholarly commons through investing 2.5% of their total budgets. It provides three fundamental truths: 1) Sustained investment from libraries is needed for an open commons; 2) If libraries don't act, commercial publishers will own the scholarly record; 3) Cooperation alone is not enough and significant collective investment is required. It outlines a proposal for libraries to commit 2.5% of their budgets to support infrastructure, which could amount to over $100 million annually in the US. The document also summarizes initial data collection from 35 libraries that piloted reporting their open investments and budgets. It discusses next steps to develop tools for libraries to track