As we approach the Great Unveiling of Obamacare, Americans are going to see a lot of these talking points repeated as if they're facts. Most of the talking points are not dead wrong — they could be true. But they're considerably more uncertain than most pundits seem to think.

1. Once Obamacare goes into effect, it will be impossible to substantially cut it back.

Both sides seem convinced of this — Republicans in terror, Democrats in glee. Funny thing, though — the other day, my father mentioned casually that many of his classmates at Syracuse's Maxwell School of Public Policy in the mid-to-late 1960s had been on Medicaid. And then, suddenly, they weren't.