You often forget things? Usualy your brain saves what you see and then you can remember what was around you. Science is still not sure how this works. But they are sure that your memories are individually constructed and rebuild like a map. The result is that your memories are just a part of what really happend and everyones memories are different. Dont trust your brain! ;-) However, here is the gaze detector - an add-on to your memories.

Well, you see those rectangular thingies on top of each earcup? Those are tiny video cameras, each tracking your eye movements by detecting the changes in electrical potentials that happen when they move. The idea is the Gaze Detector would record everything you're looking at, so later on you could watch a movie of your day with an accompanying "attention marker" pointing out exactly what held your gaze.

Thats post-modern. Just like people making a video of a party and watching it right after the party together as if they not have been part of it...

via SCI FI Tech