Well, I suppose it could have been some kind of mind trick, but the lectures I did attend were real snoozers. The old man would open up with "So as I was sayin

Well, I suppose it could have been some kind of mind trick, but the lectures I did attend were real snoozers. The old man would open up with "So as I was saying ..." and then launch mid-equation into whatever he was talking about last time. Like literally "So as I was saying, delta-aich over delta-tee ...."