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  • 6
    What if the original is a book, rather than a sheet? Commented Jul 31, 2013 at 12:09
  • 1
    Excellent query. We made an assumption that the original was a sheet of paper. Commented Jul 31, 2013 at 12:11
  • Would the variations in the form factor of the original impact the scope of your question? Commented Jul 31, 2013 at 12:12
  • 4
    I don't see a real problem with the book. The problem appears to be that the output is delivered too far away from the input source, moving the focus of attention. You'd be much better off moving the output (which has to move anyway) near the input. E.g. underneath the input, in the space where the line scanner moved, and reachable only by lifting the lid. Commented Aug 1, 2013 at 7:46
  • 1
    I wonder how in the world "studies have shown" "a subconscious effort." Can subconscious things be counted? Commented Aug 1, 2013 at 13:34