To a certain extent you can get through crazy travel schedules on sheer force of will. You have places to go, things to do, so you go there and do them. The hard bit comes when you stop, because that’s when you crash. And that is where I am now. I have no energy, no enthusiasm, and no brain cells. I still have things to do, but they all exist on the far side of a swamp and I can’t wade through to them. I’m trying to avoid doing anything that involves brain cells because I’m liable to make silly mistakes. I do need to go the bank to get cash for the Worldcon trip, but when I tried to do so this morning I realized that I didn’t have the energy to walk to the bus stop. Fortunately it is the start of a new month and one of the things I have to do is take backups. This involves little more than sitting and waiting for the computer to do things, which is about all I am good for right now.