Imagine an American Indian tribe — in particular three families, the Smiths, the Joneses and the Chiefs. Squaw Smith “falls” pregnant, so the chief of the Smith family improves their tent by finding, hunting & adding a deer-hide to it for softness and warmth. Squaw Smith is pleased, and gestates appropriately. Squaw Jones presumably trips over and “falls” solidly pregnant herself, so now it’s up to the Jones family chief to compete with the Smiths. Tribesman Jones can’t merely match the Smiths’ improvement and retain his own status, so he tops it by hiking into the next valley and hunting down a buffalo hide for their tent. The buffalo-hide is larger, softer & warmer than a deer-hide, which pleases Squaw Jones immensely. Then social unrest descends when Squaw Chief develops the bulge of motherhood as well. The tribe’s chief looks around puzzled. He’s well-aware of how such bulges arise, but buffalo is the most sumptious local hide, so he’s wondering how to outdo the Jones famil