The Great Pyramid of Giza, the oldest and sole surviving Wonder of the Ancient World, has attracted the interest of philosophers, savants, and travelers for at least four millennia. Some of this interest has centered on the question of whether the ancient Egyptian culture possessed and encoded certain mathematical concepts in the pyramid’s proportions and measurements. I have analyzed the Great Pyramid’s geometry without considering the issues of what mathematical knowledge ancient Egyptian architect-engineers did or did not authoritatively possess. If ancient designers did encode something in the Great Pyramid, I believe they would have wanted the structure’s very geometry to carry the message. Perhaps the Great Pyramid is not a tomb but a tome—open to all those who possess
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