Humanity’s saga began when we ventured down from the trees of Africa 200,000 years ago. We spread ideas and families across the globe since then. There will come a time when we must venture away from our planet, the only home we have ever known, and claim our destiny among the stars. The impetus for such a venture may be cosmic calamity: our universal neighborhood will look shockingly different in a few short thousand years.
Will our saga continue into the far future? Galactic black holes may devour any trace of our civilizations, but perhaps part of us will live on in the genes of beings who have long since forgotten us. Our descendants may be barely human. They may forget their roots on a lonely planet called Earth. But their determined survival will echo through time like a song to our memory.