From time to time, I tap my fingers on keys that are neither the keys of a trumpet nor those of a piano. Sometimes, little lights on the screen blink when I do so, and ink splatters onto a white page. Here's a collection of what sometimes happens, in no particular order.

I have written many more papers, but they have not all been transferred to Tinderbox, so things will appear as I get to them, heralded by blog entries.