Last month the Congressional Budget Office released its much-anticipated projections for debt and deficits, and there were cries of lamentation from the deficit scolds who have had so much influence on our policy discourse. The problem, you see, was that the budget office numbers looked, well, O.K.: deficits are falling fast, and the ratio of debt to gross domestic product is projected to remain roughly stable over the next decade. Obviously it would be nice, eventually, to actually reduce debt. But if you’ve built your career around proclamations of imminent fiscal doom, this definitely wasn’t the report you wanted to see.

Still, we can always count on the baby boomers to deliver disaster, can’t we? Doesn’t the rising tide of retirees mean that Social Security and Medicare are doomed unless we radically change those programs now now now?

Maybe not.

To be fair, the reports of the Social Security and Medicare trustees released Friday do suggest that America’s retirement system needs some significant work. The ratio of Americans over 65 to those of working age will rise inexorably over the decades ahead, and this will translate into rising spending on Social Security and Medicare as a share of national income.

But the numbers aren’t nearly as overwhelming as you might have imagined, given the usual rhetoric. And if you look under the hood, the data suggest that we can, if we choose, maintain social insurance as we know it with only modest adjustments.