Christian vanenen presents a compelling pitch for policy-based Access Control in Drupal core. As the renowned author of the Group module, he aims to introduce a more dynamic system, allowing access to be gained or lost based on predefined policies. This innovative approach surpasses the limitations of current permission-based and attribute-based systems. With a well-prepared plan and most of the code already written, Christian seeks a 12K investment for about 15 days of work to achieve a proof of concept. His vision is to collaborate with core maintainers during DrupalCon Lil and bring this valuable addition to the Drupal community.