Software too often imposes gratuitous restrictions on how we see or interact with the world - forcing us to experience the world through the keyhole of a door. The Keyhole Problem arises every time software artificially restricts something you want to see or something you want to express. If you want to see an image, but your image-viewing software artificially restricts how much of that image you can see at a time-that's the keyhole problem. If you want to specify a password of a particular length, but your software says it is too long-that's the keyhole problem. If you want to type in your U.S. telephone number, but your software refuses to let you punctuate it in the conventional manner with a dash between the three-digit prefix and the four-digit exchange-that's the keyhole problem.
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