Sometimes, the guys controlling the synapses are asleep at the switch, and things I've always known are momentarily gone. It's one thing when I know that to be the case — knowing what I don't know — such as seeing an actress on the screen and being asked who it is. I knew until I was asked. It's not knowing that I don't know that's the bigger problem...not realizing that I've forgotten, because the switchman hasn't fallen asleep, he's thrown the wrong switch.