i was watching tv and they were explaining what percent of your life have you reached the half way point and most people think its 40 since alot of people live to 80 but what the real question was is how old FEELS like half of your life. consider this: time flys at the age of 40 or 50 and twice as fast at the age of 80 when you were 17. so the answer is: 20 you have lived 50% of your life when you turn 20! yes calculations from super scientists say its 20!!
interesting huh?
EDIT: those of you at the age of 20 have lived 50% of your life and age of 40 its considered to be 75% of your life and when its over 60 its high 85%. when you do reach 80 its in the 95%
so in other words those of you over 40 - SUCKS TO BE YOU.