What I was saying was this:
In order for life to exist, the environmental conditions must be suitable for organic life. Basically, I'd expect to see another planet like Earth in many ways.
So if we have a planet very much similar to Earth, and we have natural selection occuring on this planet, then I believe the end result would be something almost identical to human beings. Whether or not these other beings are ahead or behind us intellectually would largely depend on how old the intelligent life is. If intelligent life on another planet is 10,000 years older than we are, then I'd expect traveling to their world would be quite similar to traveling 10,000 years into the future on Earth. If the E.T. humans are 1,000 years younger than we are, I'd expect visiting their planet to be similar to traveling back in the time 1,000 years on Earth, with obvious differences in history and culture between the two planets.
It would be very interesting to see how much the different history and culture would affect the progress of the species. Sort of like how the Middle East in many ways is 100 years behind the West in terms of development and progress.
Since the universe is expanding from the point of the big bang, it seems likely that any life-haboring planet that exists further away than us from the singularity would have younger intelligent life on it. Any such planet closer to the singularity would have older intelligent life on it.
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