I had an almost physical pain in my stomach the morning of getting on the plane to arrive on time in California for Anna's graduation. And I thought, "This is ridiculous. You'll have to travel more often in the future, naturally, because you'll get very rich and very famous soon, so what is this shit? Girl, you need to learn to write while you travel." 

When I went on the Amtrak trip it was different. I had a room all on my own. It was a room on wheels, but it was a room for me alone where I could shut myself in and even ask for breakfast and lunch and dinner brought to me if I desired so. In other words, it was traveling while being spoiled rotten. This is different. This is traveling while being interrupted so I don't have long stretches of time where I can properly sink into my story. I have a half hour in the car while on the way to the airport, I have a couple hours on the plane, I might snatch another hour in the hotel before I have to leave and go places.