> Most of my handwriting these days is working out ideas on paper when I'm stuck on something in code.

I am so glad I'm not alone there. It's hard to not feel stupid when you have to work out the winding order of some triangles for the 10th time.

I scribble about programming because nothing digital has so far allowed me to use spatial arrangement, arrows and such to organize my thoughts as conveniently.

I very rarely write on paper anything more than a short sentence at a time.

For me, paper is less about writing and more about laying out my thoughts.

(So far writing on digital tablets has been a less than great experience and I really like the real world arrangeability and simultaneous viewing of multiple pieces of paper.)

When I find myself coding in circles (admittedly, I spend less time coding these days so fairly infrequent) I know it's time to get a big piece of graph paper and start drawing boxes and arrows.

A lot of my doodlings are remembering which trig operator I have to use. It's usually tan