Computers today are capable of video recording from your birth, which most people can never remember, to your death if you wanted to do so having everything that you do put onto recordings that you can playback at any time. So you want to remember what you did on November 12 1975 well just access your at home PC or whatever and download that day to see what you were up to. Wearable cameras are very small and lightweight so that having them in your glasses, on you clothes or in your briefcase to follow along with all that you do, say and hear. Who really needs to have a memory for everything that you do? That sounds very stupid to me for most of the things I do aren't really important enough to remember. The things I need to recall I do pretty good at and when I'm not certain I can use my PC for a data search.