What if we make this gadget even smaller and embed it into, say, glasses, then connect it with portable hard drive? I am too lazy to do the calculations, but assuming the disk space for a month worth of footage costs $300, it is not out of reach of average person. Maybe our children will have complete record of their lives, will always be able to recall what happened to them, what are the names of people they met, what they have agreed upon, what really happened during last blackout etc. They will never have to search for the lost things, they will just rewind the video log to see where they had put them.

The downside is that this limits the privacy and makes people do what they are supposed to do, and not what the actually want to do -- their boss (parents, teacher etc.) will just look up the video and see what one had done at his work (school) time. We also really would not want anyone to browse our life record as they wish. The data will need to be heavily encrypted and protected from unauthorized access.