Picture yourself, Jack, a confirmed home-body, a sedentary fellow who finds himself walking in a deep wood. You spot something out of the corner of your eye. Before you know anything else, you know that this thing is very large and that it has no place in your ordinary frame of reference. A flaw in the world picture. Either it shouldn’t be here or you shouldn’t. Now the thing comes into full view. It is a grizzly bear, enormous, shiny brown, swaggering, dripping slime from its bared fangs. Jack, you have never seen a large animal in the wild. The sight of this grizzer is so electrifyingly
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