There are benefits to being too busy, exhausted, or even lazy to write. Hell, I can let some things sit for some time, and then they begin to make less sense, and have to be modified, or else they develop into more further refined ideas on their own and can be combined with other ideas that come up in turn, forming more interesting compounds. Or maybe they can just be tossed aside altogether and forgotten. Sometimes writing can be compulsive; it does feel good to get some thoughts processed and put together and then put up into objective form. But sometimes letting the magic of slow fermentation take its course is the thing to do.