This is a test in awareness ... how good is your short term memory and ability to maintain awareness ... it may not be as good as you think. Watch this video and see if you can count how many times the white team passes the ball. It is more than ten.

When i tried i found it easier to kind of blur my vision and use peripheral vision to watch the white team. I find this interesting as it demonstrates the reason a magician is able to easily deceive onlookers.

People can only concentrate on one thing at a time, and can only visually focus on one thing at a time. The outside edges of our peripheral vision is quite dumb to detail, instead it detects movement more easily. This is a genetic trait stemming from survival wiring of the brain. The outer edges of vision are controlled by 'rods' which cope in darker environments more readily and are able to detect changes in distance or minute movements easily.

&hl