My friend, Brandon, recently told me that when we are born we have smooth brains. As we get older, acquire knowledge, information and experiences, our brains become wrinkly. I guess as we get older everything gets wrinkly and crevice-y. Not unlike rivers, valleys, and land in general. The Grand Canyon is a very good example of this. Here we have nearly two billion years of the Earth's geological history exposed as a result of the Colorado River and its tributaries cutting their channels through layer after layer of rock.
