There are various theories about why the years seem to pass faster as you get older. The most popular is also the most obvious. As you get older, each year is a smaller percentage of your life. If you are ten years old, a year is ten percent. If you are fifty years old, a year is two percent. But she had read a theory that spurned that explanation. The theory states that time passes faster when we are in a set routine, when we aren't learning anything new, when we stay stuck in a life pattern. The key to making time slow down is to have new experiences.