Like the egg in the Columbus story, they are both crushed flat at the contact end
Fitzgerald includes a little historical snippet in the form of a reference to the story of the Egg of Columbus.
In the story, Christopher Columbus is dining with Spanish nobles who are trying to downplay his discovery of the West Indies. To the criticism, he replies by offering a wager to anyone who can make an egg stand on its tip. No one is able to achieve the feat, but when it is his turn, Columbus taps the egg at one end to flatten the tip, allowing the egg to stand. Although not directly associated with the themes in The Great Gatsby, the story evinces how important creativity is to the advancement of civilization, as the discovery of the Americas is undoubtedly one of the greatest discoveries of all time, and it came along thanks to a Columbus, a revolutionary thinker.
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