I'm unfamiliar with the specifics of Flatland. Is it a true two dimensional universe, or is it just a place where everything is flat, and the inhabitatants have no concept of a third dimension?
If it is a truely 2D universe then the concept of "thickness" just doesn't apply. Not even a single atoms' worth. Either way, if Flatlanders have something analogous to an eye what they will perceive will be a one dimensional line, of varying brightness. Give them two such eyes, and their brains will be able to construct a 2D view of their world, similarly to the way our brains construct a 3D view of our world from the two slightly different views from each of our eyes.
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timeasmymeasure
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Date: 2006-05-14 01:41 am (UTC)If it is a truely 2D universe then the concept of "thickness" just doesn't apply. Not even a single atoms' worth. Either way, if Flatlanders have something analogous to an eye what they will perceive will be a one dimensional line, of varying brightness. Give them two such eyes, and their brains will be able to construct a 2D view of their world, similarly to the way our brains construct a 3D view of our world from the two slightly different views from each of our eyes.