My bet is that the physics that we are currently calling theoretical and top stuff, is actually down nearer the bottom of the ladder, or at least somewhere near the lower middle, and that we have a lot more to learn.
"We make choices everyday, some of them good, some of them bad. And - if we are strong enough - we live with the consequences."
— David Gemmell
That may be true when applied generally to physics and our knowledge of its principles, Al, but there are highly specialized disciplines within the science that require an adherance to a certain set of rules and/or conditions, no matter what the circumstance. Just coincidently, an astrophysicist has written a two part article for Astrobiology magazine that addresses the issue of intelligent life in the universe. Its simply written so that any lay person can understand the crux of his ideas, but it contains enough information to give you an idea of what is needed for intelligent life to form elsewhere.
There are other links at the bottom of the page that you can click on if you want to read further information on the subject.
Skeptical scrutiny is the means, in both science and religion, by which deep insights can be winnowed from deep nonsense. ~ Carl Sagan
"...man has an irrepressible tendency to read meaning into the buzzing confusion of sights and sounds impinging on his senses; and where no agreed meaning can be found, he will provide it out of his own imagination." ~ Arthur Koestler
That's entirely possible, PS, we may even be talking about humans being the dominant design for intelligent life. After all, it's possible that evolution on other planets took the same course it did here. It's all theoretical at this point.