Homo sapiens reached anatomical modernity about 200,000 years ago and began to exhibit behavioral modernity around 50,000 years ago.
I suspect that our descendants 1,000,000 years from now wouldn't consider themselves Homo sapiens- primitive, brutish creatures. (Consider how we feel about our ancestors from as recently as 50,000 years ago.)
Actually we can relate very well with the concerns of people from a few thousands years ago. Writings from ancient Rome, from ancient Greece are still very contemporary in many, many ways.
