Adjusting enrollment

It’s true that if Princeton admits 18 fewer students during each of the next three years, the 2015­–16 undergraduate enrollment will be “back to optimal size” (Campus Notebook, Oct. 24). But what happens then? Do you maintain that size by admitting 50 additional students the following year? That pendulum could swing for a long time. If current enrollment is problematic, why not make a onetime adjustment next year, limiting the problem to this year (50 high) and 2016-17 (50 low)?