Hindsight uses a rolling audio buffer of 60 seconds to allow you to save moments after they have already passed. Hindsight is always recording and deleting, so when it records second 61, it deletes the first second. This rolling audio buffer will start the moment you open the app and can even run in the background. You can stop the buffer at any time with the stop button in the side menu or by manually closing the app. When something happens that you want to record, you can select last 15, 30, o