On what replaces us

Marcus Aurelius wrote his Meditations in army camps along the Danube in the 170s, fighting frontier wars he never sought. He was a man watching an empire he loved shift constantly beneath him: officers rising, cities burning, plague thinning the ranks. His private note to himself was not a lament. It was an attempt to see change plainly, without the childish hope that anything might hold still.

This week marked the anniversary of August 1, 1981, when a new cable channel flickered to life with the words "Ladies and gentlemen, rock and roll," and viewers watched "Video Killed the Radio Star" by the Buggles, the first music video ever broadcast on MTV. The song's title said it out loud: a new form arrives, an older one recedes. Radio did not die. But the audience turned. Every generation lives inside some version of this, watching the thing that shaped it become the thing that gets replaced. The Stoic point is not to grieve the turning. It is to notice you were always part of it.