It might be news to Unity08 - "The center doesn't exist"

This from libertarian writer Tom Knapp in Free Market News about the Unity08 plan:

They're centrists. They're concerned about the increasing polarization of partisan American politics, and they want to nominate -- through an online process open to every American voter rather than through the front-loaded caucus and primary system -- a presidential ticket which will appeal the the American "moderate/independent" voter.
My big question for Unity08 (unasked on the conference call -- I only asked one question, and wouldn't have had to ask that one if I'd done better homework) is this:
How do you set the "center" on fire, politically speaking?
A plurality of Americans describe themselves as "centrists," "moderates" or just "independents" -- but so far as I can tell, they've never historically hung together as a bloc at the polls. I'm not sure that they can.
The thing about the center is that it doesn't really exist as such. As you zoom in on it, it turns out to be composed of its own mini-polarizations. Some centrists "lean right," Some "lean left," on an issue-by-issue basis, with different issues being important to different people. The "center" isn't a bloc -- it's a bloc of blocs..... [more]