“No pupils on Monday morning. Spent the whole time till lunch answering letters and setting examination papers. A dull job, rewarded by those sudden gleams of fugitive association that have the habit of starting up only when the intellect is fully engaged on something else.”
C. S. Lewis
Letter of 17 October 1929
He would have a term for it. And it is the perfect term.
This happens to me a lot in the car. An idea comes, which I can only repeat over and over to myself until I get to a traffic light, where I can scrawl it hastily down in my notebook.