selden wrote:It's the initial formation which they think is inhibited. That wouldn't stop planets from from moving into that region later due to orbital effects. The large number of "strange" planetary orbital configurations which have been found makes it clear that there are enough planets around enough stars that every possible configuration exists somewhere. A configuration being unlikely means that there are very few of that particular type, not that there are none.
That's the problem.
What we're finding in space is, to me anyway, becoming more and more "strange", enough so that life as we know it is bordering on impossible. To me, it's just more evidence in support of the Rare Earth theory, if not the "Lonely Earth theory"*, which to me, seems to be extremely likely, regardless of the size of the universe and the number of objects in it.
Or, I just wear my heart on my sleeve too much. I'm a hopeless romantic.
Especially if it involves sci-fi ideas (i.e., habitable circumbinaries).*As far as I know, I just made it up out of the blue, but if such a theory actually exists in science debates as explicitly named, feel free to enlighten me.