posted on Jul, 19 2009 @ 07:30 PM
Interesting topic and one I've always found interesting.
It's really a simple matter of mathematics in it's strictest sense. Barring of course 'x-events' such as geologic upheavals, fluke scientific
We have reached our current level of technological achievement in roughly 5000 years. That is, in a linear sense. A relatively brief time when given
the approximate age of mankind. Which is thought to be between 150,000-195,000 years since our earliest ancestors.
What is more interesting, though, is the relatively brief 'lifespan' of most of mankinds structures and contributions of the last 1000 years or so.
10-15,000 years would wipe out virtually anything we've manged to build or construct in the historical era.
So clearly, we have had enough actually time to evolve to a certain point, be erased, and re-start back in a more or less primitive technological
Regardless, an interesting exercise in speculation if nothing else.