If you had a list of your ancestors and went back through them to your 87th ancestor, you will reach a man and woman who lived around the time Socrates was born.1
This chart below shows how unimportant we are. In 1000 years we will be just another number on someone else’s timeline. It also shows how important we are. If any of these men and women had failed to reproduce, the chain would have been broken and we wouldn’t exist today.