One tweak a week compounds the system

00:35:10 — One tweak a week compounds the system

Once the smallest version of a system is running, the second rule is what the show calls one tweak a week — a single deliberate adjustment that keeps the system improving without overwhelming it. Tim illustrates with his own walking system, where the popular 10K-step target felt unreachable from a 5,500-step baseline, so he set a more honest 9,500 floor and let weekly nudges raise the bar. The principle reframes optimization as a slow, low-friction loop rather than a heroic redesign.