The only reason we know anything about the Mayan, Egyptians and so there old cultures because they recorded in stone or build massive stone structures to detest decay. In all our advancement, most of our culture will have decayed in less than 1000 year. Some are so busy digging up the past, but what is man doing for the future. We are the archeology dig of the future.
This documentary puts your life, efforts and belongings in perspective as a reality check. Everything around you is probably gone in less than 250 years.. A great documentary to watch.