[9fans] Proposed Aid for the nearly blind

[west9@worldnet.att.net]

As an aide to the nearly blind, I would like to design and build a Plan9 or Inferno based system that presents text one word at a time in the center of the screen in a font perhaps 25mm high. The progress of the text would be controlled by keyboard entries in the style of vi.

I am motivated to try this by having observed an elderly physician with macular degeneration use a commercial pc application that presented enlarged text as a crawler under mouse control. He was very challenged, and it seemed to me that the computer should be doing more work.

The scheme of presenting text one word at a time comes, I think, from research into computeraided speed reading at Bell Labs in the 1960's, at least that's where I remember seeing it. It was found that reading was fastest if the sequentially presented words were sized to occupy a fixed area in the center of the screen

If someone could sketch out the software development that would be required to test out this idea, I'd be much obliged.

-Tom