The Three Clocks
People experience health on three timescales simultaneously: a lifetime (identity — who they are and where they are headed), months (stability — the drift, the decline, the destabilization), and minutes (action — the acute episode). Care is organized almost entirely around the third.
Clock 1 — years to a lifetime. Health identity: the arc, the goals, what matters to this person. Almost nowhere does this exist as an operational object. It lives in the patient's head and, partially, in a longitudinal chart that no one reads end to end.
Clock 2 — days to months. Destabilization: the chronic condition drifting, the post-discharge window, the prescription that quietly stopped being filled. This is where most suffering and most cost accumulate, and it is where the system is thinnest — because Clock 2 work fits the visit worst.
Clock 3 — minutes to days. The acute episode. Triage, the visit, the emergency department, the documentation. This is the clock the entire system runs on.
Underneath all three sits a learning layer: measuring whether the system's projections held, calibrating, and watching for inequity in how any of it performs.
The short version: patients live on Clock 1, deteriorate on Clock 2, and are seen on Clock 3.