The author describes vacation activities including reading Thinking in Systems by Donella Meadows, which introduces systems thinking with stocks, flows, and feedback loops.

The book's highlight chapter on delays uses a car dealership example. A manager aims to keep inventory at 10x daily sales. With no delays, the system overreacts to demand spikes. Adding a delivery delay (5 days for orders to arrive) and a response delay (ordering only a fraction of the discrepancy) causes unexpected oscillations that never stabilize.

Counterintuitively, shortening the response delay worsens oscillations, while lengthening it (e.g., divisor of 6) stabilizes the system. The lesson: delays aren't always bad; leaders should model systems and test parameters rather than rely on intuition.