There are seven letters. Each one from a kid writing back from the future. They write these letters to people who should have done the right thing, to teach them a lesson. Instead they just let them off the hook. They should have punished them so they could learn from their mistakes. The people didn't care about the important things or the safety of them. In the end she writes a letter to her future child. Telling them she won't do this to them. This article is very true, people don't punish people for things they should. It hurts them in the long run.