This is incredible - as you listen intently follow along with the words forward and then backward...... Make sure you read as well as listen.
This is a video that was submitted in a contest by a 20 year old. The contest was titled "u @ 50". This video won second place. When they showed it, everyone in the room was awestruck and broke into spontaneous applause. So simple and yet so brilliant. Take a minute and watch it.