growth

The interesting content is the order things broke in, because that order is a property of the system and it repeats. What breaks first at each scale step, why the control plane usually goes before the data plane, and the thing you would skip if you did it again.

Taking the keyboard teaches nothing and is the reflex under pressure. The handoff that works, the four questions that make someone's reasoning visible, and the point at which you stop asking questions and take over.