Imrahil wrote:Yep, I'd hypothesise most old civilizations in the universe moved beyond the need to exist in physical form or be restricted by physical location. Also, there's endless ideas about the fabric of the universe and what's beyond; perhaps they've all left to explore other planes of existence or outer realms by now, if those places do exist.
I'm sure there are other baby civilizations like us all over the universe though.
Not no mention planets where the most advanced life is on par with a sheep or a gecko, or perhaps even less advanced.