For months there were two laptops at our kitchen table. His book came out this week. Mine’s out there too. What I’ll keep isn’t either book — it’s the two of us at that table, each convinced the other one’s work was worth the early alarm.

Two weeks ago, I was at a county fair with my grandbabies. This week, I was at a very different kind of fair in Wisconsin—thinking about AI, healthcare and how quickly “eventually” can become “November.” Somewhere along the midway, I found myself coming back to one question: What if?