Existence is a platform that uses data from a user's devices, calendar, location history, and other sources to provide insights into how the user spends their time and create a visual timeline of their life, with the goal of helping users build strong habits and be more compassionate by reflecting on memories and patterns in their behavior over time. It analyzes environmental factors, health events, activities, locations and other metrics about a person's life to generate visualizations like timelines and cards to showcase milestones, moments, and statistics about their life.