Why have you constrained your argument to 2 possibilities, only?? You assume that if it isn't a conventional aircraft, then it MUST be an alien spacecraft...there are obviously other possibilities that you have consciously chosen to ignore.
The simplest explanation, (if observers think they have seen an alien spacecraft), is that they are mistaken, given the total lack of actual solid evidence that aliens even exist.
So the question becomes why have you chosen to ignore what is really the "simplest explanation"???
With almost 40 years as a pilot, I understand what the data evidence reveals.
On another note, the data evidence doesn't reveal anything natural, celetrial bodies, atmospheric phenomena, etc, the data evidence only proves that the UFOs in question are intelligently controlled vehicles whose maneuvering capabilities exclude aircraft and I am not emphasizing that lightly.
Edited by skyeagle409, 11 November 2006 - 11:01 PM.