At record time, don't know what is signal and what is noise. Separation of signal from noise is not persistence problem, it is presentation problem. Model is so

At record time, don't know what is signal and what is noise. Separation of signal from noise is not persistence problem, it is presentation problem. Model is sophisticated: number of delays against action intended time, etc. flow into whether task is noise. Being in list is protection against amnesia but not protection against prioritization.