Taking notes is compression of facts or ideas that are "full size" in the mind at the moment of reception. More fidelity when typing, lower compression ratio, and thus better for comprehensive reference; a personalized textbook. Handwriting is intensive, slow, but potentially powerful compression that is much more lossy but capable of transmitting more bits of important information per page. Tradeoffs can be minimized by the ability to graph and edit page layout creatively while typing.
