In this touching futuristic short story, mankind lives underground, hidden from the devastated, polluted surface. Two SBANTs (androids) strive to understand who they are, and reach the sky, unseen for so long. Will they go beyond being mere machines? This was very satisfying for such a short story. There was an aspect that was never explained, but it really wasn't necessary. I wished the story was longer, so I could have gotten to know the side characters better! We really only get to know a few characters really well. The story is filled with longing: to remember erased memories, andfulfill dreams made with human friends. In all, very good.