The exponential climb in achievement we see today seems late in coming. If we were so smart 10,000 years ago, why are we only now discovering how the universe works? Or does the leap in knowledge require a lot of prerequisite conditions that emerge over millenia? And if that is the case, when one sees remarkable technology in ancient cultures, one must wonder, how did it emerge in isolation and why did it not flourish?
FM, that is an excellent question and at the heart of many peoples attitudes today. "If they were so smart, then why didn't they (fill in the words)". You may almost need to check Box E - All of the Above.
First off, the world's population in 10,000bc according to this link was only 1 million:
http://www.vaughns-1-pagers.com/history ... owth.3.pdf
Most figures that I have seen vary from 1 million to 4 million worldwide. As stated earlier - yes - there are more geniuses around today and even looking in the past with the presented chart, the population was 170 times greater by 1AD. In essence, there were no large cities or complex interacting cultures which could transmit improvements and inventions across a great distance quickly. Even in the sixth century AD look what happened to many Roman advances in Europe. They were forgotten.
Second, the knowledge and technology you are referencing does require many, many prerequisites as inferred by Digit. Complex technology may require many thousands of years of stability to develp and we were just plan lucky with the last 11,400 years of climate stability that allowed us to develop civilisation and flourish. The prior 115,000 years weren't so kind to humankind.
To search for prior civilisations on earth I would be looking at the interstadial warm periods that occur every 100,000 years or so. A good place to look would be the Eemian Interglacial about 125,000 years ago plus, when
H. sapiens were in Ethiopia and possibly other areas. However, there might not be much left for evidence if there was only a handful of them.
http://en.wikipedia.org/wiki/Eemian_interglacial
Civilisation probably requires something more intellectually adept than
H. erectus to develop, and we may be the first experiment on earth ever. Don't know - still need the
Wayback Machine to figure that one out also.
With no evidence of Atlantis, we're it.
