Some Drive time on NPR

The way ideas spread is pretty simple: Conversation by conversation. One engaged person talks with another engaged person — and out of that daisy chain of human interactions come new ways to navigate our lives.

One of the best and most enduring forums for conversation is public radio. And in the past week, I've had the good fortune to talk about the ideas in Drive with several National Public Radio journalists. Here's a sampler:

1. Morning Edition. A talk with Madeline Brand.

2. Talk of the...