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My favorite story of this concept is where, one Thanksgiving, a little girl is helping her mother in the kitchen. “Mom, I see you cut the ham in half. Why did you do that?” she asks her mother. “Oh, it’s a family tradition. We cut the ham in half and we put one half in each oven,” the mother replies. “We bought this house specifically because it had a double oven and it took us months longer than we thought it would to find a house that had a double oven.” “But why do you cut the ham in half?” the daughter asks again. “Well, it’s family tradition and we’ve always done that. I think it makes the food better or something, I don’t really know the answer. Why don’t you ask Grandma?” The little girl goes and asks Grandma and says, “Grandma, why do you cut the ham in half?” “Well, that’s a good question, dear,” Grandma replied. “When your grandfather and I bought our house, we had to spend thousands of dollars extra changing the kitchen around to buy a double oven, because, after all, simply nobody had double ovens in those days. It was really painful, I remember, but it’s a family tradition and we knew it mattered.” The daughter asks again, “Well, why do you do it?” “Well, I don’t really know,” Grandma says. “I don’t know, maybe it’s something to do with the food being better or something. Why don’t you ask your great-grandma?” Great-Grandma is sitting in the living room and she’s old and frail. The little girl goes up to her and says, “Great-Grandma, why does this family always cut the ham in half and cook it in two ovens?” She goes, “Well, I have no idea why my daughter and granddaughter do it, but I did it simply because the oven wasn’t big enough.
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Simon Dudley (The End of Certainty: How To Thrive When Playing By The Rules Is A Losing Strategy)