[kidd]

We are now beginning to understand that Nature seems to overwhelmingly prefer systems that have a multiple planets with orbits of less than one hundred days

Not necessarily true. These are the ones that can be detected with present technology/methods.

[cripplecreek]

Not necessarily true. These are the ones that can be detected with present technology/methods.

Perzactly. Look how long it took for us to find one small star hugging planet in the Alpha Centauri system. In fact it's likely that most of the super earths and super Jupiters that we've found in habitable zones have multiple moons which may be habitable.