Yellowstone Lessons

Today, when we visited the Old Faithful Geyser, I was reminded of the first time I visited. I was told that I might not see it erupt again, because a thin white layer was covering it every time it erupted. I was also thinking about the fact that eventually, the Big Dipper would change. It seems so sad that people in the year 30000 will have so many different landmarks than we do. (if this post seems random, i'm tired)