One, too, three mistakes in this post

From a political point of view, there are too things I like about this release. One is that it doesn't overpromise. One of the biggest risks facing progressive politics at the moment is that we inherit a deteriorating situation, take action that ensures things get "bad" rather than "terrible," and that get blamed by the public and the right for creating a bad situation. To that end, it's important not to make unrealistic promises about what you're proposing. Romer and Bernstein are clearly saying he that even if this works, we're going to get to a bad place.

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