Sculpting the Kuiper Belt (cont.)
What about the main belt inclinations? This is very tough!
Here are the mechanisms of which I am aware:

		Dynamics OK?	Other OK?
I:	Sweeping Mean Motion Resonances	NO	maybe
II:	Sweeping Secular Resonances	NO	.
III:	Scattering by a Planet	Maybe	.
IV:	Secular Resonance with an Inclined Planet	Maybe	.
V:	Binary Star	Maybe	.
VI:	Passing Stars	NO	.

Sweeping Secular Resonances:

• are caused by the interaction of KBOs with a massive gaseous solar nebula.
• This process works, but it takes too long.