The Past Comes to Meet the Future!
I suppose every living creature tends to perceive the world in terms of its own species. So when we humans look at history, we look back at all the events down through the ages of human habitation on earth, including what we now describe as the development of civilization. It seems like such a very long time ago when our species was in its early stages. Humans have changed and evolved so much in a few thousand years that it takes an effort for us to even recognize our early ancestors as relatives. In contrast, I've been engrossed in a PBS series about the evolution of our planet in which the time dimensions are mind-blowing. The episode I just finished is about Pangea, the supercontinent that included almost all the land on the planet. Pangea existed here 299 million years ago, and it lasted for 26 million years. Compare those numbers to our human historical ones! Scientists have been able to read Pangea's history from messages in rock fossils and formations, so we know what ...