In fact, everything changes, develops, grows, and evolves. It takes sensitivity to be alive to the novelty and nuances of life and the universe. With some phenomena it s easier to see than others. Consider the miracle of a child. Because G-d wants us to love and nurture our children despite the enormous burden involved in their care, he designed them to develop so that we will never grow bored with them.
Infants change before our very eyes.
In one short year, they grow hair, teeth, and a distinct personality. Their sounds turn to words, their crawling becomes running. Then they start writing on the walls with crayon. Before you know it, they ask for the keys to the car. You get the picture.