I have followed this thread, and others like it, without commenting until now.
Whilst I could never be described by any stretch of imagination as an expert on this subject, I first became aware of this subject when I first read
some of the now, somewhat discredited, Von Daniken's books nearly 25 years ago.
I do not subscribe outright to the belief that we have been visited in the past by "spacemen" or "astronauts" or whatever.
I treat any such claim with an inbred scepticism.
However, I accept that there is some compelling evidence in the myths, legends, and to a lesser extent art, of numerous cultures throughout the world
to suggest that it is indeed a distinct possibility.
Yes, there has been some utter nonsense written on the subject and some of the claims only help to discredit the theory, but there is also some pretty
hard to argue with evidence, especially when interpreting writings from a modern day perspective.
The point I am trying to make, eventually, is that the complete lack of objectivity displayed by some astounds me.
It seems that some people, from both sides of the arguement, absolutely refuse to even consider the opposing viewpoint despite some compelling
supportive evidence.
I suspect that there are personal agenda's being persued rather than attempting to enter into a reasoned debate with an open mind.
If I had to get off the pot and give a personal opinion, something I'm not usually reluctant to do

, I would suggest that the similarities in
numerous culture's myth's and the abundance of them, suggests that it is very possible that we were visited by someone / thing in the distant past
and that they inter-acted with earth's inhabitants of the day.
I also think that some of the more detailed elaborations on this are simply the result of over active imaginations. Others, complete and utter
nonsense whose only redeeming features are their comedy value.
[edit on 15-1-2008 by Freeborn]
[edit on 15-1-2008 by Freeborn]