Steady State

”Economic growth” is commonplace in the daily news. We assume it’s a good thing, that a 2–4 percent increase in GDP is beneficial to all. Likewise, we hear that our communities are growing, and we see a 2–4 percent increase in population as reasonable and benign. Meanwhile, visionary community leaders are busy planning for a steady feed of single-digit annual growth. So we’re in good hands, right? But what the news reports miss is that any steady rate of growth is an exponential function that contains within it a knowable doubling time.