I heard a theory about why time seems to move faster as you get older. When you are 1 year old, 1 year represents 100% of your life and experience. When you are 10 years old, 1 year represents 10% of your life and experience. When you are 50, 1 year is only 2%. As you continue to age, each passing year becomes a smaller and smaller fraction of your total life experience. This relative shrinking of each year in the context of your entire lifespan creates the perception that time is speeding up. The more years you accumulate, the more they blur together, giving the impression that they are flying by more quickly.