Two recent news items evoke the power of paper and similar objects in what we often assume is a purely digital world: First, as the New York Times reported, âIn a decision that could radically change the size, the color and even the feel of American money, a federal appeals court ruled on Tuesday that the United States discriminates against the blind and those with limited vision because its paper currency is all the same size regardless of a billâs value.â  The full opinion in American Counci