For a lot of things, a huge spatial visual index would be more useful than the text. Microsoft had some sort of project where you could have several thousand p

For a lot of things, a huge spatial visual index would be more useful than the text. Microsoft had some sort of project where you could have several thousand photos onscreen at a time. An analogous case from the physical world would be searching for a particular image you remember from a thick book of artwork. I think this would be pretty easy for most people, but I don't know of a good digital version. Maybe the xkcd archives would be a good testbed.