Thanks for the excellent write up!

I am now tempted to install these although I know I wouldn't use them. I prefer doing
mind maps and notes on paper, because it is a much more direct form of interaction,
a physical expression of thoughts. A line, a box, a word is on paper when I want it
to be there, nearly instantaniously, instead of clicking, clicking again, dragging,
and then releasing the mouse.

Also, I realised I prefer reading code on paper, because I'm not tempted to change anything,
can make arrows for the control flow, put notes and remarks anywhere, in free form, on
the paper.

I will probably upload some images of code I read and worked on on paper.