This essay is part of The Truths of Aging Nobody Talks About. A MORTL series on what it means to grow old in America.
There are 197 independent countries in the world.[8] About a quarter of Americans (27 percent) have never traveled abroad, and only 11 percent have been to ten or more countries.[1] There are more than 7,000 living human languages.[5] More than 2 million species have been formally described,[6] and one widely cited estimate says 86% of the species on Earth haven’t been.[7]
A 2016 analysis of Hubble data found at least 10 times more galaxies in the observable universe than the older estimate of 200 billion, so at least 2 trillion.[9]
You’re going to die having experienced an almost incomprehensibly small fraction of what exists.
It’s math, and it’s one of the quiet griefs of aging that rarely gets named. The growing awareness that the window is closing, that the list of things you’ll never see or do or know is growing faster than the list of things you will.
