Capacities is a flexible and highly structured personal knowledge management (PKM) system. Unlike traditional note apps, it uses “objects” (discrete data types like People, Tasks, Meetings, Books, Projects, etc.) that can be linked, organized, and queried. Built for deep work, research, and long-term knowledge retention, Capacities includes AI-assisted summarization, search, and connections across all saved information, helping users build a digital second brain effortlessly.