The ancient Romans had a ritual called the *memento mori* practice — but not the gloomy version you might imagine. Seneca, writing to his friend Lucilius, made a sharper observation: it's not that life is short, it's that we spend enormous portions of it on things we never actually chose. He calculated, ruthlessly, how much of a typical day belongs to illness, sleep, obligation, and distraction — and found the remainder surprisingly thin. What cognitive psychologist Amos Tversky later confirmed in a different language is that humans are systematically loss-averse about time in the abstract but oddly generous with it in the moment, handing it over to whoever asks. Seneca's remedy wasn't a meditation on death — it was an audit of the living day. Today, Saturday, is a rare gift: unstructured time. The question Seneca would press you on is whether you'll actually inhabit it, or spend it as a waiting room for Monday.

Name one thing you did this week that you would have chosen if no one were watching and nothing external required it.

Drawing from Stoicism — Seneca the Younger