Count me out dude, to many cons. There would be no more getting away with anything because if you were a suspect they would just scan you and slam down the law on you. Then there is also the operation to put it in your brain which comes with the risks of life threatening complications. Recovery time, possible labotamy and/or brain damage. Expensive implantation and most likely software. Malfunctions, having your brain exposed to outside elements, and scars. A lot of times you probably dont even want to see your memories in real time because they may not live up to what you remember. I have an idea, why dont you just get some glasses with a camera on them, that way when you do somthing funny you can laugh at yourself later, because if its actually funny your friends will remember it(unless you are all binging on xanax)