Graham and I thought it was rather a good sketch. It was therefore terribly embarrassing when I found I’d lost it. I knew Graham was going to be cross, so when I’d given up looking for it, I sat down and rewrote the whole thing from memory. It actually turned out to be easier than I’d expected.
Then I found the original sketch and, out of curiosity, checked to see how well I’d recalled it when rewriting. Weirdly, I discovered that the remembered version was actually an improvement on the one that Graham and I had written. This puzzled the hell out of me.
Again I was forced to the conclusion that my mind must have continued to think about the sketch after Graham and I had finished it. And that my mind had been improving what we’d written, without my making any conscious attempt to do so. So when I remembered it, it was already better.
Chewing this over, I realised it was like the tip-of-the-tongue phenomenon: when you can’t remember a name, and you chase after it in your mind
Excerpt from: Creativity: A Short and Cheerful Guide by John Cleese