All I'm saying is that, if life were to develop on other planets, it would be very different from life on Earth. Because it would have gone down a completely different evolutionary timeline, it is extremely unlikely that life with intelligence such as ours (a brain that makes the organism want to explore and possibly contact extraterrestrial life) would evolve. That makes me seriously doubt the validity of claims that say aliens have come in ships that are usually said to be made out of metal and are covered in lights that resemble Earth-made lights.

I wasn't actually using the Anthropic Principle to prove my point, I was actually using the same evidence that supports the AP (that the odds of life forming anywhere are astronomical).

And the "if we were the first life forms" was just me musing on the Anthropic Principle. I was just saying that, perhaps, if the Anthropic Principle is designed to create beings that can observe the Universe, then if Earth were the first place that life developed, then perhaps it wouldn't need to develop on other planets, and it wouldn't. But that is far beyond the realm of today's science, so I'm totally speculating.  ;)