Happens to me on a regular basis. I wake up in the night with a solution to a bug I am chasing or some difficult interface that remained unfinished. Sometimes

Happens to me on a regular basis. I wake up in the night with a solution to a bug I am chasing or some difficult interface that remained unfinished. Sometimes it comes right out of the blue. Last week I awoke in the night with the realisation that there was an "edge case" bug in some code I was due to deliver the next day - and I certainly had not consciously been thinking about that code after I had finished with it - almost the opposite as I had been happy with the run of tests I had applied. The brain is a wondrous organ.