I just popped 2 stars in the reaction part of that test. So did my wife. My teenage kids did 15 and 20. It goes to show that the older you get, the slower your reaction time is. That's why I can not do well with those video games that the young generation are playing.

Maybe some of you did better than me in that reaction test. Or probably all of you did better than me and that I'm just too slow.