Yesterday I was whizzing around London, to different areas, making extensive use of my Oyster card - people to see, places to go, things to do.
Today I've been sort of chained to the desk and engrossed in pretty much one topic all day, apart from a few breaks for cups of tea. What I noticed today was that the assignment has filled every nook and cranny of my head, so that I've not really thought about or done anything else.
I think tomorrow I will need to go out for a while, interact with a few others face to face and maybe walk around in order to let some fresh thinking blow though my head.
I don't know how it works, but sometimes 'not thinking' about something can actually stimulate a better way to resolve it.