With dynamic scoring, as discussed above, the budget would probably be balanced by then, in the real world.

FORBES: Washington Post Misleads Readers About Paul Ryan, Tax Rates and Deficits

Ireland had a dynamic economy and (at first) a balanced budget.

ECONOMIST: Germany and the euro

The Congressional Budget Office is embarking on a series of studies, using what is called dynamic forecasting, to try to take account of the economic impact of the tax plans.

ECONOMIST: Taxing times | The

So it's notable that during its recent budget debate the Senate voted 51-48 for a nonbinding resolution that would require CBO to produce a dynamic score for tax changes.

WSJ: Review & Outlook: The Senate Gets Dynamic