That's a good analogy. Pencil (or pen) and paper go at human speed, like a bicycle, and have no artificial constraints (glyphs available for writing, for exampl

That's a good analogy. Pencil (or pen) and paper go at human speed, like a bicycle, and have no artificial constraints (glyphs available for writing, for example). I still use notebooks for some things. You can draw in a notebook (and yes, I know you can draw on a computer, but in many ways it is more involved). The link between thought and recording is much tighter than on a computer. It would be interesting to look at how our tools shape and limit our thinking.