Circle

When I think of circles, it reminds me of what I learned in one of my classes a few weeks ago. The teacher was talking about humans everyday lifestyle. He was saying that our lives can be either a circle or a straight line. What he meant by humans living each day in a circle, was that everyday, there will be morning and night. Each week, we will have Monday through Friday, and then have our weekend. I guess it's kind of like a routine. But on the other hand, what he meant by a straight line was that everyday, we will have different events going on, and we won't have two of the same days that are exactly alike. I thought both were correct, but I was amazed when the teacher told us about the circle. Because mornings, nights, Mondays, Fridays, and etc. are very ordinary ways of thinking,  and I never knew we could put it into simple words like that. And as I was reading some of the blog posts done by other IE students, most of them were talking about something related to routines. So maybe I guess we are surrounded by all kinds of circles. For example, I heard that Ice Age might be coming back sometime in the future. That means that the Global Warming is suppose to happen, so we an have the Ice Age again, and then Global Warming again and so on, just like a circle.