What traffic teaches us is that reckless and uncontrolled change is as likely to harm us as it is to benefit us, and that thoughtful regulation is necessary for a better future.
It's moving back and forth between our considered judgments about particular cases and the general principles we would articulate to make sense of those judgments.
After the commission, my coser sent me a thoughtful write-up recounting our day together – reflecting on the moments we shared and her thoughts on the experience.