this brain has been asked to do too many things at once
One morning in the midst of this colossal project I woke up and, with mounting horror, realized that I actually knew the differences between Jacobean, Jacobian, Jacobin, and Jacobine. I did my utmost not to think about it, and the knowledge soon passed from my mind. But it is probably still lurking around in there somewhere, hiding in some dark corner, waiting for just the right inapporpriate moment to jump out and ruin whatever conversation I might be having. If I don't find a way to clear all this useless information out I'm afraid my critical faculties will seize up like a computer that's been asked to do too many things at once, and I'll forget how to speak altogether.
I can relate.